Question
Simplify the expression
−4x2
Evaluate
(2×−8x)x
Remove the parentheses
2×−8xx
Use b−a=−ba=−ba to rewrite the fraction
2(−8x)x
Any expression multiplied by 1 remains the same
−2×8xx
Solution
More Steps

Evaluate
2×8xx
Multiply the terms
More Steps

Multiply the terms
2×8x
Cancel out the common factor 2
1×4x
Multiply the terms
4x
4xx
Multiply the terms
4x×x
Multiply the terms
4x2
−4x2
Show Solution

Find the roots
x=0
Evaluate
(2×−8x)x
To find the roots of the expression,set the expression equal to 0
(2×−8x)x=0
Use b−a=−ba=−ba to rewrite the fraction
(2(−8x))x=0
Multiply the terms
More Steps

Evaluate
2(−8x)
Multiplying or dividing an odd number of negative terms equals a negative
−2×8x
Cancel out the common factor 2
−1×4x
Multiply the terms
−4x
(−4x)x=0
Remove the parentheses
−4xx=0
Multiply the terms
More Steps

Multiply the terms
−4xx
Multiply the terms
−4x×x
Multiply the terms
−4x2
−4x2=0
Simplify
−x2=0
Change the signs on both sides of the equation
x2=0
Solution
x=0
Show Solution
