展开 (2,-2)y(5,-3)

解答

展开

(2, - 2) y (5, - 3)

2 y, 5, - 2 y, 3 - 2 \cdot 5 y, 2 \cdot 3

求解步骤

(2, - 2) y (5, - 3)

= (2, - 2) (5, - 3) y

乘开

(2, - 2) (5, - 3) : 2, 5, - 2, 3 - 2 \cdot 5, 2 \cdot 3

= y (2, 5, - 2, 3 - 2 \cdot 5, 2 \cdot 3)

乘开

y (2, 5, - 2, 3 - 2 \cdot 5, 2 \cdot 3) : 2 y, 5, - 2 y, 3 - 2 \cdot 5 y, 2 \cdot 3

= 2 y, 5, - 2 y, 3 - 2 \cdot 5 y, 2 \cdot 3

e x p an d (- 2 x)^{\circ - 1} (x + y)

e x p an d \frac{4}{( 3 - x ) ^{3}}

e x p an d \frac{a + b ( a + b y )}{a - b ( a - b y )}

e x p an d \frac{b ( a - 1 )}{1 + b ^{2} a}

e x p an d (5 x - x^{2} - 6) d y - (1 - x) d x