posted by julie on .
i have to simply the expression
3x squared-10+4x+8-x squared, so far i have this
3x squared-1xsqaured+4x -10+8
i know its kinda confusing becasue i type sqaured so many time, am i on the right track?how do i find the answer now? i'm so confused :(
You are OK as far as you went.
3x^2 -10 +4x +8 -x^2 = 2x^2 +4x -2
= 2(x^2 +2x -1)
That cannot be factored easily, so it is as simplified as it is going to get.