展开 (11x(3x+1))/3

解答

展开

\frac{11 x ( 3 x + 1 )}{3}

11 x^{2} + \frac{11 x}{3}

求解步骤

\frac{11 x ( 3 x + 1 )}{3}

乘开

11 x (3 x + 1) : 33 x^{2} + 11 x

= \frac{33 x ^{2} + 11 x}{3}

使用分式法则:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{33 x ^{2} + 11 x}{3} = \frac{33 x ^{2}}{3} + \frac{11 x}{3}

= \frac{33 x ^{2}}{3} + \frac{11 x}{3}

数字相除:

\frac{33}{3} = 11

= 11 x^{2} + \frac{11 x}{3}

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

e x p an d π r h (r + h)

e x p an d 2 x - 3 (5 x - 8 = 115)

e x p an d 2 e^{j (\frac{π}{2} + π)}

e x p an d 3 x (2 = x (3 x - 2) - 24)