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2 years ago

5

Number 8 please thanks!

1 answer:

WINSTONCH [101]2 years ago

4 0

$4b(b+2)=16+4b^2\\4b^2+8b=16+4b^2\\8b = 16 + 4b^2-4b^2\\8b = 16\\b = 2$

Hope that helps!

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