Question
Simplify the expression
2x7−4x8
Evaluate
(x2×2x3)(x2−2x3)
Remove the parentheses
x2×2x3(x2−2x3)
Multiply the terms with the same base by adding their exponents
x2+3×2(x2−2x3)
Add the numbers
x5×2(x2−2x3)
Use the commutative property to reorder the terms
2x5(x2−2x3)
Apply the distributive property
2x5×x2−2x5×2x3
Multiply the terms
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Evaluate
x5×x2
Use the product rule an×am=an+m to simplify the expression
x5+2
Add the numbers
x7
2x7−2x5×2x3
Solution
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Evaluate
2x5×2x3
Multiply the numbers
4x5×x3
Multiply the terms
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Evaluate
x5×x3
Use the product rule an×am=an+m to simplify the expression
x5+3
Add the numbers
x8
4x8
2x7−4x8
Show Solution

Factor the expression
2x7(1−2x)
Evaluate
(x2×2x3)(x2−2x3)
Remove the parentheses
x2×2x3(x2−2x3)
Multiply
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Evaluate
x2×2x3
Multiply the terms with the same base by adding their exponents
x2+3×2
Add the numbers
x5×2
Use the commutative property to reorder the terms
2x5
2x5(x2−2x3)
Factor the expression
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Evaluate
x2−2x3
Rewrite the expression
x2−x2×2x
Factor out x2 from the expression
x2(1−2x)
2x5×x2(1−2x)
Solution
2x7(1−2x)
Show Solution

Find the roots
x1=0,x2=21
Alternative Form
x1=0,x2=0.5
Evaluate
(x2×2x3)(x2−2x3)
To find the roots of the expression,set the expression equal to 0
(x2×2x3)(x2−2x3)=0
Multiply
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Multiply the terms
x2×2x3
Multiply the terms with the same base by adding their exponents
x2+3×2
Add the numbers
x5×2
Use the commutative property to reorder the terms
2x5
2x5(x2−2x3)=0
Elimination the left coefficient
x5(x2−2x3)=0
Separate the equation into 2 possible cases
x5=0x2−2x3=0
The only way a power can be 0 is when the base equals 0
x=0x2−2x3=0
Solve the equation
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Evaluate
x2−2x3=0
Factor the expression
x2(1−2x)=0
Separate the equation into 2 possible cases
x2=01−2x=0
The only way a power can be 0 is when the base equals 0
x=01−2x=0
Solve the equation
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Evaluate
1−2x=0
Move the constant to the right-hand side and change its sign
−2x=0−1
Removing 0 doesn't change the value,so remove it from the expression
−2x=−1
Change the signs on both sides of the equation
2x=1
Divide both sides
22x=21
Divide the numbers
x=21
x=0x=21
x=0x=0x=21
Find the union
x=0x=21
Solution
x1=0,x2=21
Alternative Form
x1=0,x2=0.5
Show Solution
