it is 3x3 not that hard
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x = 9/2 or x = -2 Solved by using the quadratic equation formula.
The equation is xy = 5*9 = 45 Alternatively, y = 45/x
no
(x-9)2 + y2 = 484The center is atx = 9y = 0The radius of the circle is 22 .
x2+11x+11 = 7x+9 x2+11x-7x+11-9 = 0 x2+4x+2 = 0 The above quadratic equation can be solved by using the quadratic equation formula and it will have two solutions.