What is expand (x-2)(x+1-2i)(x+1+2i) ?

The solution to expand (x-2)(x+1-2i)(x+1+2i) is x^3+x-10

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expand (x-2)(x+1-2i)(x+1+2i)

expand

(x - 2) (x + 1 - 2 i) (x + 1 + 2 i)

x^{3} + x - 10

Solution steps

(x - 2) (x + 1 - 2 i) (x + 1 + 2 i)

Expand

(x - 2) (x + 1 - 2 i) : 4 i + x^{2} - x - 2 x i - 2

= (4 i + x^{2} - x - 2 x i - 2) (x + 1 + 2 i)

Distribute parentheses

= 4 i x + 4 i 1 + 4 i 2 i + x^{2} x + x^{2} \cdot 1 + x^{2} \cdot 2 i - xx - x \cdot 1 - x \cdot 2 i - 2 x i x - 2 x i 1 - 2 x i 2 i - 2 x - 2 \cdot 1 - 2 \cdot 2 i

Simplify

4 i x + 4 i 1 + 4 i 2 i + x^{2} x + x^{2} \cdot 1 + x^{2} \cdot 2 i - xx - x \cdot 1 - x \cdot 2 i - 2 x i x - 2 x i 1 - 2 x i 2 i - 2 x - 2 \cdot 1 - 2 \cdot 2 i : x^{3} + x - 10

= x^{3} + x - 10

lo g_{3} (\frac{x}{z})

\frac{s ( s ^{2} + 6 s + 4 )}{( s - 3 ) ( s + 2 ) ( s + 6 )}

\frac{2 ( 1 - 6 )}{5}

3 (10 - 1)

(2 - x) x

What is expand (x-2)(x+1-2i)(x+1+2i) ?
The solution to expand (x-2)(x+1-2i)(x+1+2i) is x^3+x-10