Question 200463
While you don't say, I suspect that you want to factor these expressions, right?
Factor:
{{{-30x^2+15x+90}}} First, factor out a -15 because that's a factor of each of the three terms in the expression.
{{{-15(2x^2-x-6)}}} Notice the sign change in the terms! Now factor the trinomial.
{{{highlight(-15(2x+3)(x-2))}}}
Factor:
{{{8x^2+10x-3}}} Factor the trinomial.
{{{highlight((2x+3)(4x-1))}}}