Answer :
Hard trinomial
-10 + 3 = -7
-10 * 3 = -30
5x²-7x-6=0
5x²-10x+3x-6=0
5x(x-2)+3(x-2)=0 <--factor
(x-2)(5x+3)=0
x=2, -3/5
-10 + 3 = -7
-10 * 3 = -30
5x²-7x-6=0
5x²-10x+3x-6=0
5x(x-2)+3(x-2)=0 <--factor
(x-2)(5x+3)=0
x=2, -3/5