What is expand A(1,2)B(3,-1) ?

The solution to expand A(1,2)B(3,-1) is 3(1*2,)AB,-1*(1*2,)AB

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expand A(1,2)B(3,-1)

expand

A (1, 2) B (3, - 1)

3 (1 \cdot 2,) A B, - 1 \cdot (1 \cdot 2,) A B

Solution steps

A (1, 2) B (3, - 1)

= (1 \cdot 2,) (3, - 1) A B

Apply the distributive law:

a (b - c) = ab - a c

a = A (1, 2) B, b = 3,, c = 1

= A (1, 2) B \cdot 3, - A (1, 2) B \cdot 1

= 3 (1 \cdot 2,) A B, - 1 \cdot (1 \cdot 2,) A B

- (x^{2} y - y^{3}) d y

2 (\frac{1}{2} x + 13 = 9)

(x + Δ x)^{3} + 2 (x + Δ x)

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

- \frac{6}{s ( s + 3 )}

What is expand A(1,2)B(3,-1) ?
The solution to expand A(1,2)B(3,-1) is 3(1*2,)AB,-1*(1*2,)AB