Question

subtract the sum of 2x2-4x+11 and 7x2-4x+1 from the sum of 8x2-7x-7 and 6x2+4x-6​

Answer 1

8*2-7x-7+6*2+4x-6

= 16-7x-7+12+4x-6

= 28-3x-13

2*2-4x+11+7*2-4x

= 29-8x

29-8x-28-3x-13

= 1-11x-13.