化简 2/3x+3/5x-6/5*x

解答

化简

\frac{2}{3} \cdot x + \frac{3}{5} \cdot x - \frac{6}{5} \cdot x

\frac{1}{15} x

求解步骤

\frac{2}{3} x + \frac{3}{5} x - \frac{6}{5} x

因式分解出通项

x

= x (\frac{2}{3} + \frac{3}{5} - \frac{6}{5})

\frac{2}{3} + \frac{3}{5} - \frac{6}{5} = \frac{1}{15}

= x \frac{1}{15}

= \frac{1}{15} x

e x p an d (x - 8) (x + 10)

s im pl i f y \frac{( b ^{2} )}{( a ^{2} + b ^{2} + a )}

e x p an d (2 x + y^{2})^{3}

f a c t or x^{8} - x^{2} y^{6}

f a c t or - 75 m - m^{3} + 15 m^{2} + 125