1. Find all numbers for which each rational expression is undefined. If the rational expression is defined, state as such.
(Y+8)/ (6y^2 - y - 2)
2. Divide as indicated (x^2+x)/(x^2-4) divide by (x^2-1)/(x^2+5x+6)
3. Denominators are additive inverses. Simplify the results (y-7)/(y^2-16) + (7-y)/(16-y^2)
(1) To find out the values for which the expression is undefined, we set the denominator to 0 and find y.
6y^2 - y - 2 = 0
6y^2 + 3y - 4y - 2 = 0
3y(2y + 1) - 2(2y + 1) = 0
(2y + 1)(3y ...
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