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Which of the following is a correct factorization of the trinomial -3x²-10x-8?

1) (-3x+2)(x+4)
2) (-3x-4)(x+2)
3) (3x+4)(-x-2)
4) (3x-2)(-x-4)

User Wally Ali
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1 Answer

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Final answer:

The correct factorization of the trinomial -3x²-10x-8 is (-3x+2)(x+4).

Step-by-step explanation:

The correct factorization of the trinomial -3x²-10x-8 is (-3x+2)(x+4).

To factorize the trinomial, we can use the AC method. First, find the product of the leading coefficient and the constant term: -3 * -8 = 24.

Next, find two numbers that multiply to 24 and add up to the coefficient of the middle term, which is -10. In this case, the numbers are -4 and 6. Rewrite the middle term using these numbers: -4x + 6x. Then, group the terms and factor by grouping.

-3x² - 4x + 6x - 8

-3x(x + 4) + 2(x + 4)

(-3x + 2)(x + 4)

User Carrutherji
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