Question 61167
if your question is like this

(3x^2-4x+18)+(8x^2+9x-62)the answer is like this,


first of all remove the brackets,
3x^2 -4x +18 + 8x^2 +9x -62 

now collect the middle terms together.

3x^2+8x^2 -4x +9x +18 -62

==> 11x^2 + 5x -44


which is your required number.