What is expand (x-4)(x-sqrt(5))(x+sqrt(5)) ?

The solution to expand (x-4)(x-sqrt(5))(x+sqrt(5)) is x^3-5x-4x^2+20

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expand (x-4)(x-sqrt(5))(x+sqrt(5))

expand

(x - 4) (x - 5) (x + 5)

x^{3} - 5 x - 4 x^{2} + 20

Solution steps

(x - 4) (x - 5) (x + 5)

Expand

(x - 4) (x - 5) (x + 5) : (x - 4) (x^{2} - 5)

= (x - 4) (x^{2} - 5)

Apply FOIL method

(x - 4) (x^{2} - 5) : x^{3} - 5 x - 4 x^{2} + 20

= x^{3} - 5 x - 4 x^{2} + 20

\frac{9 x ^{3} + 2 x}{( 6 x + 1 ) ^{3}}

x (1 - x^{2})

(u + v e^{w})^{2}

y + 12 (y - 2 = 4 y - 27)

\frac{k + 3}{( k + 1 ) ( k + 2 )}

What is expand (x-4)(x-sqrt(5))(x+sqrt(5)) ?
The solution to expand (x-4)(x-sqrt(5))(x+sqrt(5)) is x^3-5x-4x^2+20