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Domains of rational expressions and simplifying rational expressions?
1) The domain of the rational expression below is all y’s except what number? 4, -1, 1, or 0?
5d/4d + 4
2) Simplify this rational expression
g^2 + 3g/ g^2 – g -12
1 Answer
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- Ed ILv 710 years agoFavorite Answer
1) Actually, the domain for this function is all d's except 0.
2) (g^2 + 3g)/(g^2 - g - 12) = g(g + 3)/[(g - 4)(g + 3)] = g/(g - 4)
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