simplify
(x + 3) (x^2 - 5x + 7)
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in which class and which ch
Answered by
1
(x + 3) (x^2 - 5x + 7)
= x^3-5x^2+7x+3x^2-15x+21
= x^3-5x^2+3x^2+7x-15x+21
= x^3-2x^2-8x+21
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