edwinvasquez642 edwinvasquez642

22-01-2020
Mathematics

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18. What is the product?
(2x-1)(X+4)
A. 2X^2-4
B. 2X^2+4
C. 2X^2+7X-4
D. 2X^2-7X-4

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PollyP52 PollyP52

22-01-2020

Answer:

C. 2x^2 + 7x - 4.

Step-by-step explanation:

(2x - 1)(x + 4)

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

= 2x^2 + 8x - x - 4

= 2x^2 + 7x - 4.

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