What is expand [(x+3)(x-3)][(x-2)(x+5)] ?

The solution to expand [(x+3)(x-3)][(x-2)(x+5)] is x^4+3x^3-19x^2-27x+90

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expand [(x+3)(x-3)][(x-2)(x+5)]

expand

[(x + 3) (x - 3)] [(x - 2) (x + 5)]

x^{4} + 3 x^{3} - 19 x^{2} - 27 x + 90

Solution steps

((x + 3) (x - 3)) ((x - 2) (x + 5))

Remove parentheses:

(a) = a

= (x + 3) (x - 3) (x - 2) (x + 5)

Expand

(x + 3) (x - 3) : x^{2} - 9

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

Expand

(x^{2} - 9) (x - 2) : x^{3} - 2 x^{2} - 9 x + 18

= (x^{3} - 2 x^{2} - 9 x + 18) (x + 5)

Expand

(x^{3} - 2 x^{2} - 9 x + 18) (x + 5) : x^{4} + 3 x^{3} - 19 x^{2} - 27 x + 90

= x^{4} + 3 x^{3} - 19 x^{2} - 27 x + 90

\frac{d x}{d} (y^{2} + x^{2} = 13)

\frac{d}{d t} ((θ) (5 + 2 sin (3 θ)))

6 (4 ln (2) - 1)

\frac{2 ( x + 2 )}{x + 3}

e^{5 x} (2 x - 1)

What is expand [(x+3)(x-3)][(x-2)(x+5)] ?
The solution to expand [(x+3)(x-3)][(x-2)(x+5)] is x^4+3x^3-19x^2-27x+90