What is expand (3,-1,-2)x(1,2,-1) ?

The solution to expand (3,-1,-2)x(1,2,-1) is 3x,1,2,-3x,1-1*x,1,2,1,1-2*1*x,2,2*1

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expand (3,-1,-2)x(1,2,-1)

expand

(3, - 1, - 2) x (1, 2, - 1)

3 x, 1, 2, - 3 x, 1 - 1 \cdot x, 1, 2, 1, 1 - 2 \cdot 1 \cdot x, 2, 2 \cdot 1

Solution steps

(3, - 1, - 2) x (1, 2, - 1)

= (3, - 1, - 2) (1 \cdot 2,, - 1) x

Expand

(3, - 1, - 2) (1, 2, - 1) : 3, 1, 2, - 3, 1 - 1, 1, 2, 1, 1 - 2 \cdot 1, 2, 2 \cdot 1

= x (3, 1, 2, - 3, 1 - 1, 1, 2, 1, 1 - 2 \cdot 1, 2, 2 \cdot 1)

Expand

x (3, 1, 2, - 3, 1 - 1, 1, 2, 1, 1 - 2 \cdot 1, 2, 2 \cdot 1) : 3 x, 1, 2, - 3 x, 1 - 1 \cdot x, 1, 2, 1, 1 - 2 \cdot 1 \cdot x, 2, 2 \cdot 1

= 3 x, 1, 2, - 3 x, 1 - 1 \cdot x, 1, 2, 1, 1 - 2 \cdot 1 \cdot x, 2, 2 \cdot 1

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

\frac{d}{d x} ((2 A x + b) e^{x}) + e^{x} (A x^{2} + b x + c)

\frac{( 16 + 4 x ^{2} )}{s ^{2} ( s + 4 )}

(5 + 16 - y^{2})^{2}

4 d - 7^{2}

What is expand (3,-1,-2)x(1,2,-1) ?
The solution to expand (3,-1,-2)x(1,2,-1) is 3x,1,2,-3x,1-1*x,1,2,1,1-2*1*x,2,2*1