Question

If x=-3 and y=4, calculate x²–2y
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Answer 1

Answer: 1

Explanation:

First, do -3*2 which is 9. Then do 4*2 which is 8 and subtract 8 from 9.

Answer 2

`x^(2) -2y = 1`

Explanation:

`x^(2) =3^(2) \\ =9\\2y=2*4\\=8\\x^(2) -2y=9-8\\=1`