Question

From the sum of 7+3X and 6-2x+X2, subtract the sum of 2X2 -3X and 2X2 +3x-9

Answer 1

1)7 +3x+6-2x+x^2

13+x+x^2

2)2x^2-3x+2x^2+3x-9

4x^2-9

(2)-(1)

4x^2-9-(13+x+x^2)

3x^2-x-22