化简 2*(sqrt(3)-1)

解答

化简

2 \cdot (3 - 1)

23 - 2

十进制

1.46410 \dots

求解步骤

2 (3 - 1)

使用分配律:

a (b - c) = ab - a c

2 (3 - 1) = 23 - 2 \cdot 1

= 23 - 2 \cdot 1

数字相乘:

2 \cdot 1 = 2

= 23 - 2

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

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

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

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

s im pl i f y (x + x + 12) (x - x + 12)