展开 ((2x+1)^2)/(x+1)

解答

展开

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

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

求解步骤

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

(2 x + 1)^{2} = 4 x^{2} + 4 x + 1

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

e x p an d ro t a c i o na l (x, - y)

e x p an d (9 X - 13 X^{3} + 12 - 15 X^{2}) \cdot (- 2 X^{3})^{'}

e x p an d 64 e^{8 x} (x - 2)^{3} (2 x - 3)

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

s im pl i f y z \cdot g - 2 \cdot y \cdot g \cdot (\frac{x - y}{x + y} + 1)