If A = 4x2 - 2x + 5; B = 3x - 5x2 - 3 and C = 6x2 - x + 1, find 2A - B + 3C.
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Answer:
31x^2-10x+16
Step-by-step explanation:
A=4x^2-2x+5,B=3x-5x^2-3,C=6x^2-x+1
2A=8x^2-4x+10,3C=18x^2-3x+3
2A-B+3C=8x^2-4x+10-3x+5x^2+3+18x^2-3x+3
2A-B+3C=31x^2-10x+16
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