What is expand (x-5)(sqrt(x^2-9)+4) ?

The solution to expand (x-5)(sqrt(x^2-9)+4) is xsqrt(x^2-9)+4x-5sqrt(x^2-9)-20

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expand (x-5)(sqrt(x^2-9)+4)

expand

(x - 5) (x^{2} - 9 + 4)

x x^{2} - 9 + 4 x - 5 x^{2} - 9 - 20

Solution steps

(x - 5) (x^{2} - 9 + 4)

Apply FOIL method

(x - 5) (x^{2} - 9 + 4) : x x^{2} - 9 + 4 x - 5 x^{2} - 9 - 20

= x x^{2} - 9 + 4 x - 5 x^{2} - 9 - 20

e^{x} (sin (y) + 3 y) d x - (3 x - e^{x} (sin (y)) d y = 0)

(2 - x - 5)^{2}

\frac{100 ( s - 4 )}{( s + 3 ) ( s + 2 ) ^{2}}

\frac{x ^{2} + 1}{x ^{2} ( x + 1 )}

(p - 11)^{2}

What is expand (x-5)(sqrt(x^2-9)+4) ?
The solution to expand (x-5)(sqrt(x^2-9)+4) is xsqrt(x^2-9)+4x-5sqrt(x^2-9)-20