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2 years ago

Which of the following is the correct factorization of the trinomial below? -7x^2-5x+18

Mathematics

2 answers:

ryzh [129]2 years ago

8 0

Answer: C. (-7x+9)(x-2)

Step-by-step explanation:

1. Factor out the negative sign.

−(7x^2+5x−18)

2. Split the second term in 7x2+5x−18 into two terms.

−(7x^2+14x−9x−18)

3, Factor out common terms in the first two terms, then in the last two terms.

−(7x(x+2)−9(x+2))

4. Factor out the common term x+2x+2x+2.

−(x+2)(7x−9) or (-7x+9)(x-2)

DaniilM [7]2 years ago

7 0

Answer:

-1 (7x - 9) (x + 2)

Step-by-step explanation:

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