5x² + 2 = 12 square roots

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

What are the solutions of the following system? y=-2x^2 y=x-2

If wxyz is a square, which statements must be true?