展开 1/((5x+2)^2)

解答

展开

\frac{1}{( 5 x + 2 ) ^{2}}

\frac{1}{25 x ^{2} + 20 x + 4}

求解步骤

\frac{1}{( 5 x + 2 ) ^{2}}

(5 x + 2)^{2} = 25 x^{2} + 20 x + 4

= \frac{1}{25 x ^{2} + 20 x + 4}

e x p an d \frac{( - 2 x + 2 ) ( - x ^{2} + 2 x - 4 )}{( x ^{2} - 2 x ) ^{3}}

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

e x p an d (y = 3, x - 1) (y = 2 x - 4)

e x p an d \frac{8 - 10 x}{5}

e x p an d \frac{2 ( 3 + a )}{b}