What is expand (9y^2-4x)(9y^2+4x) ?

The solution to expand (9y^2-4x)(9y^2+4x) is 81y^4-16x^2

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expand (9y^2-4x)(9y^2+4x)

expand

(9 y^{2} - 4 x) (9 y^{2} + 4 x)

81 y^{4} - 16 x^{2}

Solution steps

(9 y^{2} - 4 x) (9 y^{2} + 4 x)

Apply Difference of Two Squares

(9 y^{2} - 4 x) (9 y^{2} + 4 x) : 81 y^{4} - 16 x^{2}

= 81 y^{4} - 16 x^{2}

lo g_{3} (4) - 2 lo g_{3} (6) - 2

(3 + x) (2 x - 5)

\frac{1}{cos ^{2} ( x )} - 1

\frac{18 y ^{6}}{42 y ^{4}}

\frac{\frac{a - 4}{a ^{2} - 2 a - 8}}{\frac{1}{a - 5}}

What is expand (9y^2-4x)(9y^2+4x) ?
The solution to expand (9y^2-4x)(9y^2+4x) is 81y^4-16x^2