SOLUTION: 36x^2+48x+15=0 A){2,6/5} B){-1/2,-5/6} C){1/2,5/6} D){-2,-5/6}

Algebra ->  Expressions-with-variables -> SOLUTION: 36x^2+48x+15=0 A){2,6/5} B){-1/2,-5/6} C){1/2,5/6} D){-2,-5/6}      Log On


   

Question 1031855: 36x^2+48x+15=0
A){2,6/5}
B){-1/2,-5/6}
C){1/2,5/6}
D){-2,-5/6}
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
36x^2+48x+15=0
Dividing both sides of the EQ by 3
12x^2+16x+5=0
factoring
(2x + 1 )(6x + 5 ) = 0
F First terms
O Outside terms
I Inside terms
L Last terms
setting factors to zero and solving for x
(2x + 1 ) = 0, x = -1/2
(6x + 5 ) = 0, x = -5/6
B){-1/2,-5/6}