What is expand A(-3,1,-2,7)B(-1,-4) ?

The solution to expand A(-3,1,-2,7)B(-1,-4) is 3AB,1,1,3,1,4+2AB,7*1,2,7*4

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expand A(-3,1,-2,7)B(-1,-4)

expand

A (- 3, 1, - 2, 7) B (- 1, - 4)

3 A B, 1, 1, 3, 1, 4 + 2 A B, 7 \cdot 1, 2, 7 \cdot 4

Solution steps

A (- 3, 1, - 2, 7) B (- 1, - 4)

= (- 3 \cdot 1,, - 2 \cdot 7,) (- 1, - 4) A B

Expand

(- 3, 1, - 2, 7) (- 1, - 4) : 3, 1, 1, 3, 1, 4 + 2, 7 \cdot 1, 2, 7 \cdot 4

= A B (3, 1, 1, 3, 1, 4 + 2, 7 \cdot 1, 2, 7 \cdot 4)

Expand

A B (3, 1, 1, 3, 1, 4 + 2, 7 \cdot 1, 2, 7 \cdot 4) : 3 A B, 1, 1, 3, 1, 4 + 2 A B, 7 \cdot 1, 2, 7 \cdot 4

= 3 A B, 1, 1, 3, 1, 4 + 2 A B, 7 \cdot 1, 2, 7 \cdot 4

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(b - c d) (b + c d)

\frac{1 - ( x ^{2} + 2 ) 5 x - 4}{x ^{2} + 2}

\frac{3}{( x - 5 ) ( x + h - 5 )}

What is expand A(-3,1,-2,7)B(-1,-4) ?
The solution to expand A(-3,1,-2,7)B(-1,-4) is 3AB,1,1,3,1,4+2AB,7*1,2,7*4