Stuck on a problem. Help needed. Thank you!

Question

A. Find the error in the simplified radical process shown below. Explain the error.

B. Simplify the expression from question 1.

C. Solve the equation x⁴ + 81 = 3831. Find the answer in simplified radical form.

Answer 1

For (A), the error is in step 3. Since we have a cube root, you should multiply by y²/y² instead of y/y, which will give you for steps 4 and 5:

= 2x ³√( 2y²/y³)

= 2x/y · ³√(2y²)

For (B), what is question 1? If you meant question (A), it cannot be simplified anymore beyond step 5.

Answer 2

The last part of the solution is extra answer would be 2x*cubic root of 2/y; you can not simplify anymore