Here's an example problem I have...

2x² - 15x + 7

I used http://www.helpalgebra.com/onlinebook/f ... ouping.htm to try and solve it but here's what I got...

WORK -------------

2x² - 15x + 7

2x² - 14x - 1x + 7

(2x² - 14x) + (-x + 7)

x(2x - 14) + (-x + 7)

WORK -------------

Now I am stuck and I don't know what to do. Help, please!

I've tried several other problems on my homework and I can't figure out any of them! Please help, thanks!