give exact and approximate solutions to three decimal places for x^2+18x+81=49
y = X^2 + 18X + 81 = 49.
Y = X^2 + 18X +32 = 0
y = (x + 2) (X + 16) = 0
X + 2 = 0, X = -2; X + 16 = 0, X = -16
Solutions: X = -2, and X = -16.
Y = X^2 + 18X +32 = 0
y = (x + 2) (X + 16) = 0
X + 2 = 0, X = -2; X + 16 = 0, X = -16
Solutions: X = -2, and X = -16.