Question

Find the value of $x$ in given expression:

$2+x^2+x$

Answer 1

Consider given the expression,

$\Rightarrow 2+x^2+x$

$\Rightarrow x^2+x+2$

Now, using the formula,

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{-1+\sqrt{1^2-4\times 1\times 2}}{2\times 1}$

$x=\frac{-1\pm \sqrt{-7}}{2}=\frac{-1\pm \sqrt{7}.i}{2}$

$x=\frac{-1+\sqrt{7}.i}{2},x=\frac{-1-\sqrt{7}.i}{2}$

Hence, this is the answer.