展开-3((4,0,-8)-8(6,-1,-4))

解答

展开

- 3 ((4, 0, - 8) - 8 (6, - 1, - 4))

- 3 \cdot 4 \cdot 0,, 3 \cdot 8 + 3 \cdot 8 \cdot 6, - 3 \cdot 8 \cdot 1, - 3 \cdot 8 \cdot 4

求解步骤

- 3 ((4, 0, - 8) - 8 (6, - 1, - 4))

= - 3 ((4 \cdot 0,, - 8) - 8 (6, - 1, - 4))

乘开

- 3 ((4, 0, - 8) - 8 (6, - 1, - 4)) : - 3 (4 \cdot 0,, - 8) + 3 \cdot 8 (6, - 1, - 4)

= - 3 (4 \cdot 0,, - 8) + 3 \cdot 8 (6, - 1, - 4)

乘开

- 3 (4 \cdot 0,, - 8) : - 3 \cdot 4 \cdot 0,, 3 \cdot 8

= - 3 \cdot 4 \cdot 0,, 3 \cdot 8 + 3 \cdot 8 (6, - 1, - 4)

乘开

3 \cdot 8 (6, - 1, - 4) : 3 \cdot 8 \cdot 6, - 3 \cdot 8 \cdot 1, - 3 \cdot 8 \cdot 4

= - 3 \cdot 4 \cdot 0,, 3 \cdot 8 + 3 \cdot 8 \cdot 6, - 3 \cdot 8 \cdot 1, - 3 \cdot 8 \cdot 4

e x p an d \frac{( y ^{4} - 1 ) ^{2}}{4 y ^{4}}

e x p an d \frac{( 3 n ) ( 3 n + 1 )}{( 3 n - 1 ) ( 3 n + 2 )}

e x p an d (y + x (x^{2} + y^{2})^{2}) d x + (y (x^{2} + y^{2})^{2} - x)

e x p an d \frac{s}{( s - 1 ) ( s + 2 )}

e x p an d \frac{1}{( x - 3 ) ^{5}}