c-a/x = b/(x^2)

解答

c - \frac{a}{x} = \frac{b}{x ^{2}}

x = \frac{a + a ^{2} + 4 c b}{2 c}, x = \frac{a - a ^{2} + 4 c b}{2 c}; c \neq = 0

求解步骤

c - \frac{a}{x} = \frac{b}{x ^{2}}

乘以最小公倍数

c x^{2} - a x = b

解

c x^{2} - a x = b : x = \frac{a + a ^{2} + 4 c b}{2 c}, x = \frac{a - a ^{2} + 4 c b}{2 c}; c \neq = 0

x = \frac{a + a ^{2} + 4 c b}{2 c}, x = \frac{a - a ^{2} + 4 c b}{2 c}; c \neq = 0

\frac{15}{x + 5} = \frac{3}{4}

\frac{4}{r} = \frac{2 r - 1}{r + 2}

\frac{7}{( t + 4 ) ^{2}} = 0

\frac{2 y}{y - 3} = - \frac{1}{y}

\frac{10}{x - 2} - \frac{3}{x} = 2