So the x equals 3 so since there is a 2 on the top of it u multiply 3 times 3 which is 9 so u take 9 and multly it by -2 so 9 times negative 2 is (-18 is the answer)
The answer is B, One number line increases by 1, and the other increases by 6.
S=2(4x+2x)+4x^2=4x^2+12x
4x^2+12x=7
4x^2+12x-7=0
D=12^2-4x4x(-7)=256
X1=(-12-16)/(2x4)=-3.5 impossible
X2=(-12+16)/(2x4)=0.5
A
