Algebra2

1234smile:

y=-x^2+2(1)=3

y = 3 and x is unsolvable since -x ² + 2(1) = 3 => x ² = -1 which does not give any (real) answers.

Perhaps you meant y = (-x) ²+2(1) = 3 which gives y = 3 and (-x) ² = 1 => x = 1 or x = -1