Question

How can x2 = 2x + 4 be set up as a system of equations?

Answer 1

Answer:

Thus, our system of equation becomes,

$x^2-y=0$  and  $y-2x=4$

Step-by-step explanation:

Given equation : $x^2=2x+4$

We have to set up the given equation as a system of equations.

We can set an equation as a system of equations by placing its both side equal to a single variable term.

Consider the given equation $x^2=2x+4$.

since, the  given equation $x^2=2x+4$ has two sides right side and left side , let put them equal to a same variable y ,

then we get,

$x^2=y$ and $2x+4=y$

Thus, our system of equation becomes,

$x^2-y=0$  and  $y-2x=4$

Answer 2

$\bf x^2=2x+4\implies \begin{cases} y=x^2 \\\\ y=2x+4 \end{cases}\implies y=y$