how to show that x = 1 on this when i tried to factor both numerator and denominator are not possible?

thanks

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- Jul 30th 2012, 08:45 PMrcsvalue of x rational expression
how to show that x = 1 on this when i tried to factor both numerator and denominator are not possible?

thanks - Jul 30th 2012, 08:47 PMProve ItRe: value of x rational expression
What's the rational expression?

- Jul 30th 2012, 09:30 PMrcsRe: value of x rational expression
I clipped on the above post sir.

is that possible?

thanks - Jul 30th 2012, 09:39 PMrichard1234Re: value of x rational expression
Come on, it's really simple. $\displaystyle x^2 + 4x + 7 = x^2 + 3x + 8$; a quadratic where

*the quadratic term even cancels out*. So $\displaystyle 4x + 7 = 3x + 8 \Rightarrow x = 1$.