Question

1. The
12. If A=3x2 - 7x-8, B=x2+8x -3, C = -5x2 -3x + 2, find: (a) A+B-C (b) A-B-C
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Answer 1

Answer:

a)A+B-C

=(3x²-7x-8)+(x²+8x-3)-(-5x²-3x + 2)

=3x²-7x-8+x²+8x-3+5x²+3x-2

=9x²+4x-13

b)A-B-C

=(3x²-7x-8)-(x²+8x-3)-(-5x²-3x+2)

=3x²-7x-8-x²-8x+3+5x²+3x-2

=7x²-12x-7

Answer 2

Answer:

Step-by-step explanation: