What is expand 1-((x^2-y^2)/(x^2+y^2))^2 ?

The solution to expand 1-((x^2-y^2)/(x^2+y^2))^2 is 1-(x^4-2x^2y^2+y^4)/(x^4+2x^2y^2+y^4)

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expand 1-((x^2-y^2)/(x^2+y^2))^2

expand

1 - (\frac{x ^{2} - y ^{2}}{x ^{2} + y ^{2}})^{2}

1 - \frac{x ^{4} - 2 x ^{2} y ^{2} + y ^{4}}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

Solution steps

1 - (\frac{x ^{2} - y ^{2}}{x ^{2} + y ^{2}})^{2}

(\frac{x ^{2} - y ^{2}}{x ^{2} + y ^{2}})^{2} = \frac{x ^{4} - 2 x ^{2} y ^{2} + y ^{4}}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

= 1 - \frac{x ^{4} - 2 x ^{2} y ^{2} + y ^{4}}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

(\frac{4}{3} + \frac{11 x}{3})^{3}

(x - a)^{2}

(y + 5 y^{3}) (\frac{- 2}{y ^{3}} + \frac{3}{y ^{5}})

(- 3, - 4) y (- 2, - 8)

lo g_{2} (8.5)

What is expand 1-((x^2-y^2)/(x^2+y^2))^2 ?
The solution to expand 1-((x^2-y^2)/(x^2+y^2))^2 is 1-(x^4-2x^2y^2+y^4)/(x^4+2x^2y^2+y^4)