Answers

2015-01-04T09:02:13+08:00
(5x+3)x(-x+4)
Using FOIL method.
F=(5x)x(-x)=-5x^2
O=(5x)x(4)=20x
I=(3)x(-x)=-3x
L=(3)x(4)=12
FOIL=-5x^2+20x-3x+12
(Simplify)
-5x^2+17x+12

0