Homework Help: math-calculus

Posted by Shreya on Monday, January 9, 2012 at 10:13am.

(5y)/(6y^2-7y-3)+(4y-3)/(2y^2-15y+18)consider nonpermissible values for the addition of this equation, the product of the nonpermissible values is.

5y/(2y-3)(3y+1)+(4y-3)(2y-3)(y-6)

i not get what it asking for.

math-calculus - Reiny, Monday, January 9, 2012 at 10:35am
5y/( (2y-3)(3y+1) )+(4y-3)/((2y-3)(y-6) )

look at the denominators .
We know we cannot divide by zero, so the "nonpermissible" values of x would be all those that make either one of the denominators zero.
But you factored it, so that is good, all we have to find out which values make any of the factors equal to zero
so.....
2y-3 ≠ 0
2y ≠ 3
y ≠ 3/2

3y+1 ≠ 0
3y ≠ -1
y ≠ -1/3

and
y ≠ 6

so the nonpermissible values of x are -1/3, 2/3 and 6
math-calculus - Shreya, Monday, January 9, 2012 at 10:48am
thanks very much reiny :)

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