Question

Find two integers that make the equation true y2 =25 true

Answer 1

So, what two numbers when squared will equal 25?

Remember that, if you square a negative number, it still becomes positive. ;)

Answer 2

Well, if we square \(5\), we'll get 25. But since squaring a negative number gets you to positive, we would also be able to square the negative of it, right?
\((\neg 5)^2 = (\neg 1)^2 \times 5^2 = 1\times 25 = 25\)