# Math Help - value of x rational expression

1. ## value 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

2. ## Re: value of x rational expression

What's the rational expression?

3. ## Re: value of x rational expression

I clipped on the above post sir.

is that possible?

thanks

4. ## Re: value of x rational expression

Come on, it's really simple. $x^2 + 4x + 7 = x^2 + 3x + 8$; a quadratic where the quadratic term even cancels out. So $4x + 7 = 3x + 8 \Rightarrow x = 1$.