Question 38795: Please help me with this problem, if i do not get this problem right i will fail and have to repeat my senior year at my school 6x+18/x^2-9 divided by x+3/x-3 mutilplied by x+3/6 = ?
sincerely:: failure in math
Answer by fractalier(6550)   (Show Source):
You can put this solution on YOUR website! Okay...first of all, the fact that you care makes you Not A Failure...now on to the problem...let us factor everything first...
6x+18/x^2-9 divided by x+3/x-3 multiplied by x+3/6 becomes
6(x+3) / (x+3)(x-3) divided by x+3/x-3 multiplied by x+3/6
now invert the second one and multiply and get
[6(x+3) / (x+3)(x-3)] * (x-3)/(x+3) * (x+3)/6
Now look what cancels...the 6's, two pairs of (x+3), and the pair of (x-3),
leaving the remarkable answer.....
1 !!!
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