Question

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

Answer 1

Answer:

Step-by-step explanation:

Javier did not raise the coefficients to the third power

When Javier raised $x$ to the third power, he wrote that $(x^1)^3=x^4$, but it equals $x^3$.

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