Question

$$4 { x }^{ 2 } + \frac{ 1 }{ 9 } { x }^{ 2 } - \frac{ 4 { x }^{ 2 } }{ 3 } ,x=1$$

Solve for x, y

$y = \frac{25}{9} = 2\frac{7}{9} \approx 2.777777778$

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