P=1/2 q=-1/4 r=1/6 evaluate this: 48pqr(p+q+r)/(p+q)(p+r)

-2

Step-by-step explanation:

48pqr x (p + q + r) / (p + q) x (p + r)

48(1/2)(-1/4)(1/6) x (1/2 + (-1/4) + 1/6) / (1/2 + (-1/4)) x (1/2 + 1/6) dear lord..

48(1/2)(-1/4)(1/6) x (0.4) / (0.25) x (0.7)

-1 x (0.4) / (0.25) x (0.7)

-0.4 / 0.2

= -2

i really hope this is right because my brain hurts

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb