化简-((19+sqrt(265))k)/8+4k

解答

化简

- \frac{( 19 + 265 ) k}{8} + 4 k

\frac{k ( 13 - 265 )}{8}

求解步骤

- \frac{( 19 + 265 ) k}{8} + 4 k

合并

- \frac{( 19 + 265 ) k}{8} + 4 k : \frac{k ( 32 - ( 19 + 265 ) )}{8}

= \frac{k ( 32 - ( 19 + 265 ) )}{8}

32 - (19 + 265) = 13 - 265

= \frac{k ( 13 - 265 )}{8}

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

e x p an d (\frac{2}{x ^{2}} + 3 y^{2}) (\frac{x ^{2}}{2} + \frac{1}{3 y ^{2}})

e x p an d \frac{9 x ^{2} + 5 x + 1}{( x + 10 ) ^{3}}

s im pl i f y (h - 9) (h + 3)

e x p an d (3 e^{- 2 t} - e^{- 4 t})^{2}