Multiple Choice Question (MCQ)
If 2y^2+x-4 = 0 , and \dfrac{x}{2}=y^2 , then x =
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×
1
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✓
2
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×
3
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×
4
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5
If 2y^2+x-4 = 0 , and \dfrac{x}{2}=y^2 , then x =
1
2
3
4
5
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
\therefore x = 2
B is the choice.