Factor –7x3 21x2 3x – 9 by grouping. what is the resulting expression? (3 – 7x)(x2 – 3) (7x – 3)(3 x2) (3 – 7x2)(x – 3) (7x2 – 3

Question

1 year ago

14

)(3 x)

1 answer:

juin [17] · Answer 1 · 2023-08-01T09:54:19+03:00

The factors of the expression are $\rm(3 - 7x^2)(x - 3)$

<h3>How to find factors in the expression?</h3>

First group the first two terms and the last two terms together respectively.

The factors of the expression are given by;

$\rm= -7x^3 + 21x^2 + 3x - 9\\\\=-7x^2(x - 3) + 3(x - 3)\\\\=(3 - 7x^2)(x - 3)$

Hence, the factors of the expression are $\rm \rm(3 - 7x^2)(x - 3)$ .

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