7) 4b2 + 8b + 7 = 4
What the answer
2 answers:
4b² + 8b + 3 = 0
4b² + 2b + 6b + 3 = 0
2b(2b + 1) + 3(2b + 1) = 0
(2b + 3)(2b + 1) = 0
b = -1/2 or b = -3/2
B= -1/2 or b= -3/2
1. Subtract 4 from both sides.
2. Factor left side of equation.
3. Set factors equal to 0.
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