Factor the trinomial by grouping. 9x^3 - 3x^2 -30x

Mathematics

1 answer:

katen-ka-za [31]3 years ago

4 0

Answer:

3x(3x+5)(x-2)

Step-by-step explanation:

$9x^3-3x^2-30x= \\\\3x(3x^2-x-10)= \\\\3x(3x^2+5x-6x-10)= \\\\3x(x(3x+5)-2(3x+5))= \\\\3x(3x+5)(x-2)$

Hope this helps!

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