## Algebra 1: Common Core (15th Edition)

$192=0.6(16+2x)(12+2x)=0.6($4x^{2}$+56x+192)$ Simplify the equation: $($4x^{2}$+56x+192)=320$ Move everything to one side and solve for x: $x^{2}+14x-32=0$ Next, we factor: $(x-2)(x+16)=0$ The answer is x=2 because x cant be negative.