Question
(x−2)(x−1)3(x×1)2(x−2)
Simplify the expression
x7−7x6+19x5−25x4+16x3−4x2
Evaluate
(x−2)(x−1)3(x×1)2(x−2)
Any expression multiplied by 1 remains the same
(x−2)(x−1)3x2(x−2)
Use the commutative property to reorder the terms
(x−2)x2(x−1)3(x−2)
Multiply the terms
(x−2)2x2(x−1)3
Expand the expression
More Steps

Evaluate
(x−2)2
Use (a−b)2=a2−2ab+b2 to expand the expression
x2−2x×2+22
Calculate
x2−4x+4
(x2−4x+4)x2(x−1)3
Expand the expression
More Steps

Evaluate
(x−1)3
Use (a−b)3=a3−3a2b+3ab2−b3 to expand the expression
x3−3x2×1+3x×12−13
Calculate
x3−3x2+3x−1
(x2−4x+4)x2(x3−3x2+3x−1)
Multiply the terms
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Evaluate
(x2−4x+4)x2
Apply the distributive property
x2×x2−4x×x2+4x2
Multiply the terms
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Evaluate
x2×x2
Use the product rule an×am=an+m to simplify the expression
x2+2
Add the numbers
x4
x4−4x×x2+4x2
Multiply the terms
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Evaluate
x×x2
Use the product rule an×am=an+m to simplify the expression
x1+2
Add the numbers
x3
x4−4x3+4x2
(x4−4x3+4x2)(x3−3x2+3x−1)
Apply the distributive property
x4×x3−x4×3x2+x4×3x−x4×1−4x3×x3−(−4x3×3x2)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
x4×x3
Use the product rule an×am=an+m to simplify the expression
x4+3
Add the numbers
x7
x7−x4×3x2+x4×3x−x4×1−4x3×x3−(−4x3×3x2)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
x4×3x2
Use the commutative property to reorder the terms
3x4×x2
Multiply the terms
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Evaluate
x4×x2
Use the product rule an×am=an+m to simplify the expression
x4+2
Add the numbers
x6
3x6
x7−3x6+x4×3x−x4×1−4x3×x3−(−4x3×3x2)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
x4×3x
Use the commutative property to reorder the terms
3x4×x
Multiply the terms
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Evaluate
x4×x
Use the product rule an×am=an+m to simplify the expression
x4+1
Add the numbers
x5
3x5
x7−3x6+3x5−x4×1−4x3×x3−(−4x3×3x2)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Any expression multiplied by 1 remains the same
x7−3x6+3x5−x4−4x3×x3−(−4x3×3x2)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
x3×x3
Use the product rule an×am=an+m to simplify the expression
x3+3
Add the numbers
x6
x7−3x6+3x5−x4−4x6−(−4x3×3x2)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
−4x3×3x2
Multiply the numbers
−12x3×x2
Multiply the terms
More Steps

Evaluate
x3×x2
Use the product rule an×am=an+m to simplify the expression
x3+2
Add the numbers
x5
−12x5
x7−3x6+3x5−x4−4x6−(−12x5)−4x3×3x−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
−4x3×3x
Multiply the numbers
−12x3×x
Multiply the terms
More Steps

Evaluate
x3×x
Use the product rule an×am=an+m to simplify the expression
x3+1
Add the numbers
x4
−12x4
x7−3x6+3x5−x4−4x6−(−12x5)−12x4−(−4x3×1)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Any expression multiplied by 1 remains the same
x7−3x6+3x5−x4−4x6−(−12x5)−12x4−(−4x3)+4x2×x3−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
x2×x3
Use the product rule an×am=an+m to simplify the expression
x2+3
Add the numbers
x5
x7−3x6+3x5−x4−4x6−(−12x5)−12x4−(−4x3)+4x5−4x2×3x2+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
4x2×3x2
Multiply the numbers
12x2×x2
Multiply the terms
More Steps

Evaluate
x2×x2
Use the product rule an×am=an+m to simplify the expression
x2+2
Add the numbers
x4
12x4
x7−3x6+3x5−x4−4x6−(−12x5)−12x4−(−4x3)+4x5−12x4+4x2×3x−4x2×1
Multiply the terms
More Steps

Evaluate
4x2×3x
Multiply the numbers
12x2×x
Multiply the terms
More Steps

Evaluate
x2×x
Use the product rule an×am=an+m to simplify the expression
x2+1
Add the numbers
x3
12x3
x7−3x6+3x5−x4−4x6−(−12x5)−12x4−(−4x3)+4x5−12x4+12x3−4x2×1
Any expression multiplied by 1 remains the same
x7−3x6+3x5−x4−4x6−(−12x5)−12x4−(−4x3)+4x5−12x4+12x3−4x2
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
x7−3x6+3x5−x4−4x6+12x5−12x4+4x3+4x5−12x4+12x3−4x2
Subtract the terms
More Steps

Evaluate
−3x6−4x6
Collect like terms by calculating the sum or difference of their coefficients
(−3−4)x6
Subtract the numbers
−7x6
x7−7x6+3x5−x4+12x5−12x4+4x3+4x5−12x4+12x3−4x2
Add the terms
More Steps

Evaluate
3x5+12x5+4x5
Collect like terms by calculating the sum or difference of their coefficients
(3+12+4)x5
Add the numbers
19x5
x7−7x6+19x5−x4−12x4+4x3−12x4+12x3−4x2
Subtract the terms
More Steps

Evaluate
−x4−12x4−12x4
Collect like terms by calculating the sum or difference of their coefficients
(−1−12−12)x4
Subtract the numbers
−25x4
x7−7x6+19x5−25x4+4x3+12x3−4x2
Solution
More Steps

Evaluate
4x3+12x3
Collect like terms by calculating the sum or difference of their coefficients
(4+12)x3
Add the numbers
16x3
x7−7x6+19x5−25x4+16x3−4x2
Show Solution

Find the roots
x1=0,x2=1,x3=2
Evaluate
(x−2)(x−1)3(x×1)2(x−2)
To find the roots of the expression,set the expression equal to 0
(x−2)(x−1)3(x×1)2(x−2)=0
Any expression multiplied by 1 remains the same
(x−2)(x−1)3x2(x−2)=0
Multiply the terms
More Steps

Multiply the terms
(x−2)(x−1)3x2(x−2)
Use the commutative property to reorder the terms
(x−2)x2(x−1)3(x−2)
Multiply the terms
(x−2)2x2(x−1)3
(x−2)2x2(x−1)3=0
Separate the equation into 3 possible cases
(x−2)2=0x2=0(x−1)3=0
Solve the equation
More Steps

Evaluate
(x−2)2=0
The only way a power can be 0 is when the base equals 0
x−2=0
Move the constant to the right-hand side and change its sign
x=0+2
Removing 0 doesn't change the value,so remove it from the expression
x=2
x=2x2=0(x−1)3=0
The only way a power can be 0 is when the base equals 0
x=2x=0(x−1)3=0
Solve the equation
More Steps

Evaluate
(x−1)3=0
The only way a power can be 0 is when the base equals 0
x−1=0
Move the constant to the right-hand side and change its sign
x=0+1
Removing 0 doesn't change the value,so remove it from the expression
x=1
x=2x=0x=1
Solution
x1=0,x2=1,x3=2
Show Solution
