Question

Solve for 'x' to 3 s. f.

(x)2- 2x - 16 = 0​

Answer 1

$\: \: \: \: \: \: \: \: \: \: 2 - 2x - 16 = 0 \\ \\ ⟹2 - 2x = 0 + 16 \\ \\ ⟹2 - 2x = 16 \\ \\ ⟹( - 2x) = (16 - 2) \\ \\ ⟹( - 2x) = 14 \\ \\ ⟹x = (- \frac{14}{2}) \\ \\ ⟹ \green{\boxed{ x = (- 7)}}$