Re: Need help factoring
check the problem . I believe it should be 14x^2-x-15
14x^2 -x +15
factors of 14
1,14..... 2,7
factors of 15
1,15...3,5
we want a set whose sum of products add to 1
none exist, use binomial equation
x=-b+/- square root [b^2-4ac] all over 2a
x=1+/-[1-4[14][15]]^1/2 all over 28
x=1+/- [ 1-840]^1/2 all over 28
x=1+/- sqrt[-839] all over 28 complex roots
if the problem was
14x^2-x-15
we would have
[14x-15][x+1] answer