Which one represents the equivalent of the following expressions combined -2x² + 7x - 6 and 3x² - 8x – 1 ? a. X²+X-7
b. X²+X-5
c. X²-X-7
d. X²-X-5​

C

Step-by-step explanation:

Adding we get:

-2x^2+3x^2 + 7x - 8x - 6 -1 = X^2 -x-7

12.4, 12.387, 12.26, 12.252, 6.241, 6.2, 6.015, 6.009, 1.411, 1.2, 1.056, 1.007, 0.31,   0.13, 0.5, 0.04

step-by-step explanation:

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