展开 sqrt(3)x(2x+2)

解答

展开

3 x (2 x + 2)

23 x^{2} + 23 x

求解步骤

3 x (2 x + 2)

使用分配律:

a (b + c) = ab + a c

3 x (2 x + 2) = 3 x \cdot 2 x + 3 x \cdot 2

= 3 x \cdot 2 x + 3 x \cdot 2

化简

3 x \cdot 2 x + 3 x \cdot 2 : 23 x^{2} + 23 x

= 23 x^{2} + 23 x

e x p an d \frac{( 10 + 2 x ) \frac{d}{d t} ( ( x ) 10 )}{7 + x}

e x p an d - 9 (2) - 1

e x p an d (3.5 + e^{- x})^{2}

e x p an d 2 (3 x - 5 y = - 5)

e x p an d \frac{500 π ^{2} - 500}{2 ( π ^{2} - 2 )}