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abruzzese [7]
3 years ago
5

30b^4 - 45b^3 - 10b^2 + 15b factor this expression with work please?

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
8 0
30b^4 - 45b^3 - 10b^2 + 15b \\ \\ GCF = 5b \\ \\ 5b (  \frac{30b^4}{5b} +  \frac{-45b^3}{5b} +  \frac{-10b^2}{5b} +  \frac{15b}{5b}) \\ \\ 5b(6b^3 - 9b^2 - 2b + 3) \\ \\ 5b(3b^2(2b-3)-(2b-3)) \\ \\ 5b(2b - 3)(3b^2 - 1) \\ \\

The final result is: 5b(2b - 3)(2b<span>² - 1).</span>
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