Question 136338
(3a-7)-3(4b + 7)
3a-7-12b-21
3a-12b-28
---------------------------------
2(x^2+5-2x-7)-3(4x+8-3x^2+3x)
2x^2+10-4x-14-12x-24+9x^2-9x
11x^2-25x-28
------------------------------------
8-3(4x-(7-2x))+18
8-3(4x-7+2x)+18
8-12x+21-6x+18
-18x+47