Find the sum: (-12x2 + 4x + 4) + (6x3 - 6x2 - x).
1 answer:
It's B.
6 x^3
-12-6 = -12 + -6 = -18 x^2
4-1 = 3 x
4
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Answer: C
Triangle=36+42+102=180
18/2=x/30
2x = 18 x 30
2x = 540
x = 270
385=15n+85
385-85=15n
300=15n
300/15=n
20=n
