What is expand A(-2,-7)B(1,-3) ?

The solution to expand A(-2,-7)B(1,-3) is -2AB,1,2,3-7*1*AB,7*3

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expand A(-2,-7)B(1,-3)

expand

A (- 2, - 7) B (1, - 3)

- 2 A B, 1, 2, 3 - 7 \cdot 1 \cdot A B, 7 \cdot 3

Solution steps

A (- 2, - 7) B (1, - 3)

= (- 2, - 7) (1, - 3) A B

Expand

(- 2, - 7) (1, - 3) : - 2, 1, 2, 3 - 7 \cdot 1, 7 \cdot 3

= A B (- 2, 1, 2, 3 - 7 \cdot 1, 7 \cdot 3)

Expand

A B (- 2, 1, 2, 3 - 7 \cdot 1, 7 \cdot 3) : - 2 A B, 1, 2, 3 - 7 \cdot 1 \cdot A B, 7 \cdot 3

= - 2 A B, 1, 2, 3 - 7 \cdot 1 \cdot A B, 7 \cdot 3

4 (x + Δ x)^{2} - 3 (x + Δ x)

((3 x^{2} - 9)^{3}) x d x

(- 4) (2 x - 3 y = 9)

ln (z) (z - 1)

b 3 + b 2

What is expand A(-2,-7)B(1,-3) ?
The solution to expand A(-2,-7)B(1,-3) is -2AB,1,2,3-7*1*AB,7*3