展开 (8.35,-18.93)x(-18.93,7.6)x(2.48,-8.35)

解答

展开

(8.35, - 18.93) x (- 18.93, 7.6) x (2.48, - 8.35)

8.35 (- 7.6 \cdot 18.93,) xx, 2.48, - 8.35 (- 7.6 \cdot 18.93,) xx, 8.35 - 2.48 \cdot 18.93 (- 7.6 \cdot 18.93,) xx, 8.35 \cdot 18.93

求解步骤

(8.35, - 18.93) x (- 18.93, 7.6) x (2.48, - 8.35)

= (8.35, - 18.93) (- 7.6 \cdot 18.93,) (2.48, - 8.35) xx

乘开

(8.35, - 18.93) (2.48, - 8.35) : 8.35, 2.48, - 8.35, 8.35 - 2.48 \cdot 18.93, 8.35 \cdot 18.93

= x (- 18.93, 7.6) x (8.35, 2.48, - 8.35, 8.35 - 2.48 \cdot 18.93, 8.35 \cdot 18.93)

乘开

x (- 18.93, 7.6) x (8.35, 2.48, - 8.35, 8.35 - 2.48 \cdot 18.93, 8.35 \cdot 18.93) : 8.35 (- 7.6 \cdot 18.93,) xx, 2.48, - 8.35 (- 7.6 \cdot 18.93,) xx, 8.35 - 2.48 \cdot 18.93 (- 7.6 \cdot 18.93,) xx, 8.35 \cdot 18.93

= 8.35 (- 7.6 \cdot 18.93,) xx, 2.48, - 8.35 (- 7.6 \cdot 18.93,) xx, 8.35 - 2.48 \cdot 18.93 (- 7.6 \cdot 18.93,) xx, 8.35 \cdot 18.93

e x p an d \frac{( x ^{3} + x ^{2} + 21 )}{x ( 2 x - 5 ) ^{3} ( x ^{2} + 2 x + 5 ) ^{2}}

e x p an d 3 (x + 3) (x - 3) (x - 5) (x + 1) + 3

e x p an d (f (x) + g (x)) x^{'}

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