Question 906591
9x^2 + 4y^2 + 18x - 16y = 1
9x^2 + 18x + 4y^2 - 16y = 1
9*(x^2 + 2x) + 4*(y^2 - 4y) = 1
9*(x^2 + 2x + 1) -9 + 4*(y^2 - 4y + 4) -16 = 1
9*(x^2 + 2x + 1) + 4*(y^2 - 4y + 4) = 26
(x+1)^2/4 + (y-2)^2/9 = 13/18
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It's not solving, it's not a solution.
It's just put into standard form.