SOLUTION: multiply (3/4 X^3- !/3)(1/5 X^2 + 3/7) I have never done one like this.Would someone please help me?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: multiply (3/4 X^3- !/3)(1/5 X^2 + 3/7) I have never done one like this.Would someone please help me?      Log On


   

Question 154281: multiply
(3/4 X^3- !/3)(1/5 X^2 + 3/7)

I have never done one like this.Would someone please help me?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(3/4 X^3- 2/3)(1/5 X^2 + 3/7)
= (3x/4)*([x^2/5] + 3/7) -(2/3)*([x^2/5] + 3/7)
= (3x^3/20) + (9x/28) -(2x^2/15) - 6/21
= (3x^3/20) -(2x^2/15) + (9x/28) - 2/7
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There's no trick, just grind it out and collect terms.