Question

If a =3x^2+5x-6 and b =-2x^2 -6x+7 then A - B equals

Answer 1

Answer:

$5x^2+11x-13$

Step-by-step explanation:

$a=3x^2+5x-6\\b=-2x^2-6x+7$

$a-b=(3x^2+5x-6)-(-2x^2-6x+7)=\\3x^2+5x-6+2x^2+6x-7=\\5x^2+11x-13$

Hope this helps!