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

The solution to expand (x+3y+5)(x-3y+5) is x^2+10x-9y^2+25

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

expand

(x + 3 y + 5) (x - 3 y + 5)

x^{2} + 10 x - 9 y^{2} + 25

Solution steps

(x + 3 y + 5) (x - 3 y + 5)

Distribute parentheses

= xx + x (- 3 y) + x \cdot 5 + 3 y x + 3 y (- 3 y) + 3 y \cdot 5 + 5 x + 5 (- 3 y) + 5 \cdot 5

Simplify

xx + x (- 3 y) + x \cdot 5 + 3 y x + 3 y (- 3 y) + 3 y \cdot 5 + 5 x + 5 (- 3 y) + 5 \cdot 5 : x^{2} + 10 x - 9 y^{2} + 25

= x^{2} + 10 x - 9 y^{2} + 25

(5 a + b)^{3}

d^{2} - (0.64 d^{2})

(- 3 p + 2 q)^{3}

\frac{( 8.1 x + 2 \cdot 7.2 )}{0.2}

\frac{4}{( \frac{1}{x} )}

What is expand (x+3y+5)(x-3y+5) ?
The solution to expand (x+3y+5)(x-3y+5) is x^2+10x-9y^2+25