The equation is .
Write the equation in standard form of hyperbola.
\To change the expression into a perfect square, first divide the given equation by 4.
\To change the expression into a perfect square add (half the x coefficient)² to each side of the expression.
\Here x coefficient = - 4, so, (half the x coefficient)² = (- 4/2)2= 4.
\Add 4 and 4 to each side.
\.
Compare the above equation with standard form of hyperbola.