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Tatiana [17]
3 years ago
10

Factor -7x^3+21x^2+3x-9 by grouping. what is the resulting expression?

Mathematics
1 answer:
Daniel [21]3 years ago
8 0

Answer:

c) (3-7x^2)(x-3)

Step-by-step explanation:

-7x^3+21x^2+3x-9

Factor out a -7x^2 from the first two terms and a 3 from the last two terms

-7x^2 (x -3) +3(x-3)

Now factor out (x-3)

(x-3) (-7x^2+3)

Rearranging)

(x-3) (3-7x^2)

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