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marshall27 [118]
4 years ago
9

Which expression has a simplified expression of 5x - 12?

Mathematics
1 answer:
zimovet [89]4 years ago
8 0
<span>A. 3(4x - 4) - 7x = 12x - 12 - 7x = 5x - 12   yes

B. -3(4x - 4) - 7x = -12x + 12 - 7x = -19x + 12 no

C. 3(-4x + 4) - 7x = -12x + 12 - 7x  = -19x + 12 no

D. -3(-4x - 4) - 7x = 12x + 12 - 7x = 5x + 12 no

Answer is A.</span>
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3 years ago
8. Evaluate: f(x) = x2 + 1<br> g(x) = 5 - x<br> a. (f+g)(x) =<br> b. (f-g)(x) =
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