What is expand (3/4 x-2/3 y)(3/4 x+2/3 y) ?

The solution to expand (3/4 x-2/3 y)(3/4 x+2/3 y) is (81x^2-64y^2)/(144)

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expand (3/4 x-2/3 y)(3/4 x+2/3 y)

expand

(\frac{3}{4} x - \frac{2}{3} y) (\frac{3}{4} x + \frac{2}{3} y)

\frac{81 x ^{2} - 64 y ^{2}}{144}

Solution steps

(\frac{3}{4} x - \frac{2}{3} y) (\frac{3}{4} x + \frac{2}{3} y)

Apply Difference of Two Squares

(\frac{3}{4} x - \frac{2}{3} y) (\frac{3}{4} x + \frac{2}{3} y) : \frac{81 x ^{2} - 64 y ^{2}}{144}

= \frac{81 x ^{2} - 64 y ^{2}}{144}

\frac{( n + 1 ) ^{2} ( n + 2 ) ^{2}}{4}

\frac{1}{( x - 1 ) ^{3}}

(e^{t} + e^{3 t})^{2}

\frac{4 ( - x ^{2} + 1 )}{( x ^{2} + 1 ) ^{2}}

What is expand (3/4 x-2/3 y)(3/4 x+2/3 y) ?
The solution to expand (3/4 x-2/3 y)(3/4 x+2/3 y) is (81x^2-64y^2)/(144)