(1)两边同乘x(x-7),x=10,为解.
(2)两边同乘2x-1,x=7/4,为解.
(3)两边同乘2x-2,x=7/6,为解.
(4)两边同乘x^2-x,x=1,非解,舍.
(5)两边同乘(x-2)*(x+1),x=-1/4,为解.
(6)两边同乘x^2-4,x=-2,非解,舍.
(7)两边同乘x^2-1,x=-1/2,为解.
(8)两边同乘x(x+1)(x-1),x=1,非解,舍.
供参考!
(1)两边同乘x(x-7),x=10,为解.
(2)两边同乘2x-1,x=7/4,为解.
(3)两边同乘2x-2,x=7/6,为解.
(4)两边同乘x^2-x,x=1,非解,舍.
(5)两边同乘(x-2)*(x+1),x=-1/4,为解.
(6)两边同乘x^2-4,x=-2,非解,舍.
(7)两边同乘x^2-1,x=-1/2,为解.
(8)两边同乘x(x+1)(x-1),x=1,非解,舍.
供参考!