Choose the correct simplification of (6x3 − 7x − 4) + (4x3 + 8x + 3).

The question:

Choose the correct simplification of (6x3 − 7x − 4) + (4x3 + 8x + 3).

The answer choices you forgot to add:

A. 2x^3 − 15x − 7

B. 10x^3 + x − 1

C. 2x^3 + 15x + 6

D. 10x^3 − x − 1

The Correct

B. 10x^3 + x - 1

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12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

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