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stiks02 [169]
3 years ago
13

Multiply the polynomial expressions below.(7x+5)(2x^3-4x^2+9x-3)

Social Studies
2 answers:
svetlana [45]3 years ago
8 0

Hope this helps!!!

<u>Thanks to let me know that it helped u:)</u>

NARA [144]3 years ago
6 0
We have that:
(7x+5)(2x^3-4x^2+9x-3)=
7x(2x^3-4x^2+9x-3)+5(2x^3-4x^2+9x-3)
=(14x^4-28x^3+63x^2-21x)+(10x^3-20x^2+45x-15)
Now we add monomials of the same grade and we get:
14x^4-18x^3+43x^2+24x-15
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