Question
Simplify the expression
x6−4x5+4x4
Evaluate
(x2)2(x−2)2
Multiply the exponents
x2×2(x−2)2
Multiply the numbers
x4(x−2)2
Expand the expression
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Evaluate
(x−2)2
Use (a−b)2=a2−2ab+b2 to expand the expression
x2−2x×2+22
Calculate
x2−4x+4
x4(x2−4x+4)
Apply the distributive property
x4×x2−x4×4x+x4×4
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
x6−x4×4x+x4×4
Multiply the terms
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Evaluate
x4×4x
Use the commutative property to reorder the terms
4x4×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
4x5
x6−4x5+x4×4
Solution
x6−4x5+4x4
Show Solution

Find the roots
x1=0,x2=2
Evaluate
(x2)2(x−2)2
To find the roots of the expression,set the expression equal to 0
(x2)2(x−2)2=0
Evaluate the power
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Evaluate
(x2)2
Transform the expression
x2×2
Multiply the numbers
x4
x4(x−2)2=0
Separate the equation into 2 possible cases
x4=0(x−2)2=0
The only way a power can be 0 is when the base equals 0
x=0(x−2)2=0
Solve the equation
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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=0x=2
Solution
x1=0,x2=2
Show Solution
