Question

12)From the sum of 4x²−7x+5 and −7x²−8x+3 subtract 2x²−7x+9.​

Answer 1

The sum of 3x²-5x+2 and -5x²-8x+6

3x²-5x+2+(-5x²-8x+6)

3x²-5x+2-5x²-8x+6

3x²-5x²-5x²-8x+2+6

-2x²-13x+8

Now we subtract the sum of -2x²-13x+8 and 4x²-9x+7, we get

-2x²-13x+8(4x²-9x+7)

-2x²-13x+8-4x²+9x-7

-2x²-4x²-13x+9x+8-7

-6x²-4x+1

hope this may help u

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