Simplify
(3 x 2 + 12x - 15) - (2x2 - 10x-6)

A.x2 + 2x - 21
B.x2 + 4x -19
C. x2 + 22x - 9
D. x2 + 4x +9 ​


Sagot :

Answer:

I think letter B

Step-by-step explanation:

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