Mister Exam

4x2+9y2–40x+36y+100=0. canonical form

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100 - 40*x + 4*x2 + 9*y2 + 36*y = 0
$$- 40 x + 4 x_{2} + 36 y + 9 y_{2} + 100 = 0$$
-40*x + 4*x2 + 36*y + 9*y2 + 100 = 0