Solve by completing the square b^2 + 6b - 16 = 0
1 answer:
b² + 6b - 16 = 0
b² + 8b - 2b - 16 = 0
b(b) + b(8) - 2(b) - 2(8) = 0
b(b + 8) - 2(b + 8) = 0
(b - 2)(b + 8) = 0
b - 2 = 0 or b + 8 = 0
<u> + 2 + 2</u> <u> - 8 - 8</u>
b = 2 b = -8
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