Question
Simplify the expression
x8−x7
Evaluate
x(x×1)x2×x3(x−1)
Remove the parentheses
x×x×1×x2×x3(x−1)
Rewrite the expression
x×x×x2×x3(x−1)
Multiply the terms with the same base by adding their exponents
x1+2+3×x(x−1)
Add the numbers
x6×x(x−1)
Multiply the terms with the same base by adding their exponents
x1+6(x−1)
Add the numbers
x7(x−1)
Apply the distributive property
x7×x−x7×1
Multiply the terms
More Steps

Evaluate
x7×x
Use the product rule an×am=an+m to simplify the expression
x7+1
Add the numbers
x8
x8−x7×1
Solution
x8−x7
Show Solution

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

Multiply the terms
x×x×x2×x3(x−1)
Multiply the terms with the same base by adding their exponents
x1+2+3×x(x−1)
Add the numbers
x6×x(x−1)
Multiply the terms with the same base by adding their exponents
x1+6(x−1)
Add the numbers
x7(x−1)
x7(x−1)=0
Separate the equation into 2 possible cases
x7=0x−1=0
The only way a power can be 0 is when the base equals 0
x=0x−1=0
Solve the equation
More Steps

Evaluate
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=0x=1
Solution
x1=0,x2=1
Show Solution
