Question

check whether x=1 is the root of quadratic equation xsqu +4x-5=0​

Answer 1

Answer:

$x^2+4x-5=0,\:x=1\quad :\quad x=1$

Step-by-step explanation:

$\begin{bmatrix}x^2+4x-5=0\\ x=1\end{bmatrix}$

$\mathrm{Substitute\:}x=1$

$\begin{bmatrix}1^2+4\cdot \:1-5=0\end{bmatrix}$

$\begin{bmatrix}0=0\end{bmatrix}$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=1$