If $$ 2y^2+x-4 = 0 $$ , and $$ \dfrac{x}{2}=y^2 $$ , then $$ x = $$

Question

If $$ 2y^2+x-4 = 0 $$ , and $$ \dfrac{x}{2}=y^2 $$ , then $$ x =  $$

Uniteasy Admin · Accepted Answer

Take $$y^2 $$ as one variable
Since $$\dfrac{x}{2}=y^2  $$, that is,
$$y^2 = \dfrac{x}{2}$$
Plug in the equation 
$$2y^2+x-4=0$$
then,
$$2\cdotp  \dfrac{x}{2}+x=4$$
$$2x = 4$$
$$	herefore  x = 2 $$
B is the choice.

Multiple Choice Question (MCQ)

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