16. if (x^2-6x-16)/(x^2+8x+12)=2, what is the value of 4x?
Factor the expression
(x-8)(x+2) / (x+6)(x+2) = 2
now, omitting x = -2,
(x-8)/(x+6) = 2
x-8 = 2x+12
x = -20
4x = -80
(x-8)(x+2) / (x+6)(x+2) = 2
now, omitting x = -2,
(x-8)/(x+6) = 2
x-8 = 2x+12
x = -20
4x = -80