alright samething but need help simplifyin the expression(the other 2 is 4 squared) 2x2+4x2-(x-3)-3x

2 answers

I assume you mean
3x2 + 4x2 - (x-3) - 3x
= 6x2 - x + 3 - 3x
= 6x2 - 4x + 3
obviously that first term should have been

2x2