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標題:
Mathematics Simplification of Algebraic Fractions
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1. Simplify the following expressions. (a) (xy+xz-y^2-yz)/(xy-y^2)
最佳解答:
a) (xy-y^2+xz-yz)/(xy-y^2) =1+z(x-y)/(y(x-y)) =1+z/y =(y+z)/y
其他解答:
(xy + xz - y^2 -yz) / (xy- y^2) = [(x- y)y + z (x-y)] / y(x- y) = (x-y)(y+z)/ y(x-y) =(y+z) /y
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