completing+the+square++Set+3

Put into vertex form by completing the square: 1. y=4x2+12x-10

y + 10 = 4x2 + 12x

y + 10 = 4(x2 + 3x)

y +10 = 4(x + 1.5)^2

y + 9 + 10 = 4(x + 1.5)^2

y + 19 = 4(x + 1.5)^2

y = 4(x + 1.5)^2 - 19