f(x)= -x^2 +6x +10 maximum y - value is y=?

f(x)= -x^2 +6x +10 maximum y - value is y=?

y=4x^2 + 6x - 2

s= 1/7gt2 Whats t =

2x^2 - 8x =24

x^2 + x whats the constant term

x^2 +6x = -6 What value should I add to each side

5x^2 +8x - 69=0 x=?

f(x)=x^2+8x - 4

f(x) = x^2 - 10x - 1