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posledela
3 years ago
11

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

Mathematics
1 answer:
OverLord2011 [107]3 years ago
8 0

Simplify 7^3 to 343

-343 + 21x^2 + 3x - 9

Collect like terms

(-343 - 9) + 21x^2 + 3x

Simplify

<u>= -352 + 21x^2 + 3x</u>

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