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

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

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

expand

(4 x - 9 y) (4 x + 9 y)

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

Solution steps

(4 x - 9 y) (4 x + 9 y)

Apply Difference of Two Squares

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

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

- 5 x^{2} + 7 x + 2 - 5 x^{2} - 7 x + 2

\frac{6}{( 2 + i ) ( 3 + 5 i ) ( 1 - i )}

(4 a^{2} + 2 ab + 5 b) + (6 a^{2} - 7 ab)

\frac{1}{3 + 5}

(- 5.3) (1.1)

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