化简 1/(2sqrt(x+1))

解答

化简

\frac{1}{2 x + 1}

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

求解步骤

\frac{1}{2 x + 1}

乘以共轭根式

\frac{x + 1}{x + 1}

= \frac{1 \cdot x + 1}{2 x + 1 x + 1}

1 \cdot x + 1 = x + 1

2 x + 1 x + 1 = 2 x + 2

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

8 z + 3 x y - 12 z

15 \div \frac{1}{3}

(\frac{1}{2} a + 3)^{2}

\frac{3}{10} \div \frac{4}{5}

x^{6} - 9 x^{3} + 8