What is expand (2/3 x-3/5 y)(2/3 x+3/5 y) ?

The solution to expand (2/3 x-3/5 y)(2/3 x+3/5 y) is (100x^2-81y^2)/(225)

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expand (2/3 x-3/5 y)(2/3 x+3/5 y)

expand

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

\frac{100 x ^{2} - 81 y ^{2}}{225}

Solution steps

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

Apply Difference of Two Squares

(\frac{2}{3} x - \frac{3}{5} y) (\frac{2}{3} x + \frac{3}{5} y) : \frac{100 x ^{2} - 81 y ^{2}}{225}

= \frac{100 x ^{2} - 81 y ^{2}}{225}

(1 - cos (t))^{2} + (sin (t))^{2}

\frac{s ^{2} + 6 s + 12}{( s + 2 ) ( s ^{2} + 4 s + 8 )}

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

(2 y^{2} + \frac{1}{y})^{9}

(a - bi)^{3}

What is expand (2/3 x-3/5 y)(2/3 x+3/5 y) ?
The solution to expand (2/3 x-3/5 y)(2/3 x+3/5 y) is (100x^2-81y^2)/(225)