1. Simplify the following expressions.
(a) (xy+xz-y^2-yz)/(xy-y^2)
Mathematics Simplification of Algebraic Fractions
2007-11-04 1:14 am
回答 (2)
2007-11-04 1:23 am
✔ 最佳答案
a)(xy-y^2+xz-yz)/(xy-y^2)
=1+z(x-y)/(y(x-y))
=1+z/y
=(y+z)/y
2007-11-05 2:18 am
(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
= [(x- y)y + z (x-y)] / y(x- y)
= (x-y)(y+z)/ y(x-y)
=(y+z) /y
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