Javier simplified the expression below. Find and describe the three mistakes he made.
20x
- (203) = (5x®]* _ 5x * to
(5x®)» (20x)} – 20.x* *4

Step-by-step explanation:

Javier did not raise the coefficients to the third power

When Javier raised to the third power, he wrote that , but it equals .

In the last step, Javier divided the exponents. He should have used the quotient of powers property and subtracted them.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.