SOLUTION: Add the two rational expressions. (1/7x^3)+(1/9x^2) Help please!

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Question 182309This question is from textbook Saxon Algebra 2
: Add the two rational expressions.
(1/7x^3)+(1/9x^2)
Help please! This question is from textbook Saxon Algebra 2

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Add the two rational expressions.
(1/7x^3)+(1/9x^2)
lcd = 7*9*x^3
= (9/lcd) + (7x/lcd)
= (9+7x)/lcd
= (7x+9)/(63x^3)
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Cheers,
Stan H.