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vesna_86 [32]
2 years ago
5

Number 8 please thanks!

Mathematics
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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