化简 (5sqrt(3)-8sqrt(2))*(-7)

解答

化简

(53 - 82) \cdot (- 7)

- 353 + 562

十进制

18.57418 \dots

求解步骤

(53 - 82) (- 7)

使用法则:

a (- b) = - ab

(53 - 82) (- 7) = - (53 - 82) \cdot 7

= - (53 - 82) \cdot 7

= - 7 (53 - 82)

展开

- 7 (53 - 82) : - 353 + 562

= - 353 + 562

e x p an d (f (x) = 1, - 2 x \cdot g (x) = 2 x^{2} - 1) \cdot x

e x p an d \frac{- 5 x ^{2} - 32 x + 80}{( x ^{2} - 5 x ) ^{2}}

\frac{d ^{2}}{d x ^{2}} ((y) (- 4 x + 9)^{2})

e x p an d \frac{( ( x ^{2} - 2 ) ( x ^{2} + 2 ) )}{( 4 x ^{3} )}

s im pl i f y - \frac{- 8168445 - 4605822 i}{( 54 - 8 i ) ^{6}}