Question

solve by factoring the trinomial as a binomial square and then use the square root method. Round to nearest tenth if necessary.
x^2 + 16x + 64 = 81

Answer 1

Please help!!!! :/

Answer 2

\[x^2+16x + 64 - 81 = 0\]

\[x^2 + 16x - 17 = 0 \implies x^2 + 17x - x - 17 = 0\]

\[x(x+17) -1(x+17) = 0 \implies (x+17)(x-1) = 0\]

\[x = 1 \quad Or \quad x = -17\]

Answer 3

k thanks!!

Answer 4

Welcome dear...