SOLUTION: Multiply (x/3+3/4)(3x/4-3/5)

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Question 94264: Multiply
(x/3+3/4)(3x/4-3/5)
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
(1st+2nd)(3rd-4th)
(x/3+3/4)(3x/4-3/5)
A.Multiply the 1st and 3rd terms x%2F3%2A3x%2F4=x%5E2%2F4
B.Multiply 1st & 4th and add it to the product of the 2nd & 3rd
%28x%2F3%2A-3%2F5%29%2B%283%2F4%2A3x%2F4%29=%28-x%2F5%29%2B%289x%2F16%29
The LCD is 16*5=80 %28-x%2F5%29%2B%289x%2F16%29=%28-16x%2B45x%29%2F80=29x%2F80
C.Multiply the 2nd and 4th terms 3%2F4%2A-3%2F5=-9%2F20
D.Add the results of A,B,C x%5E2%2F4%2B29x%2F80-9%2F20
E. It will look prettier with LCD of 80:
%2820x%5E2%2B29x-36%29%2F80
Ed Jones