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Elena-2011 [213]
3 years ago
5

16-25(b+3) square

Mathematics
1 answer:
Andre45 [30]3 years ago
4 0
Since 16 and 25 are perfect squares you can factor the first part.
4^2-5^2(b+3)^2
=(4-5(b+3))(4+5(b+3))
=(4-5b-15)(4+5b+15)
=(-11-5b)(19+5b)

Which can be expanded if necessary,
= -209+150b-25b^2
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