Toán Lớp 8: ultr help meeeeeeeeeeeeeeeeeee
a) $\frac{35(x^{2}-y^{2})(x+y)^{2}}{77(y-x)^{2}(x+y)^{3}}$
b) $\frac{4x^{2}y^{2}+1-4xy}{8x^{3}y^{3}-1-6xy(2xy-1)}$
c) $\frac{x^{2}-xy-xz+z}{x^{2}+xy-xz-yz}$
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Toán Lớp 8: ultr help meeeeeeeeeeeeeeeeeee
a) $\frac{35(x^{2}-y^{2})(x+y)^{2}}{77(y-x)^{2}(x+y)^{3}}$
b) $\frac{4x^{2}y^{2}+1-4xy}{8x^{3}y^{3}-1-6xy(2xy-1)}$
c) $\frac{x^{2}-xy-xz+z}{x^{2}+xy-xz-yz}$
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