化简 (x^3y^6)^{-2}+(x^2y^4)^{-3}

解答

化简

(x^{3} y^{6})^{- 2} + (x^{2} y^{4})^{- 3}

\frac{2}{x ^{6} y ^{12}}

求解步骤

(x^{3} y^{6})^{- 2} + (x^{2} y^{4})^{- 3}

(x^{3} y^{6})^{- 2} = \frac{1}{x ^{6} y ^{12}}

(x^{2} y^{4})^{- 3} = \frac{1}{x ^{6} y ^{12}}

= \frac{1}{x ^{6} y ^{12}} + \frac{1}{x ^{6} y ^{12}}

合并

\frac{1}{x ^{6} y ^{12}} + \frac{1}{x ^{6} y ^{12}} : \frac{2}{x ^{6} y ^{12}}

= \frac{2}{x ^{6} y ^{12}}

- 4.9 x^{2} + 19.6 x + 58.8 = 0

f a c t or 6 r^{2} - 10 r - 24

s im pl i f y \frac{2 ^{3}}{5}

s im pl i f y \frac{4}{7} \cdot 49

- 30 \leq d + (- 5)