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x2 + y2 isn't an equation. Until you say it's equal to something, it's just an

expression, and its numerical value depends on the values of 'x' and 'y'.

If you say that the expression is equal to some number, the it's the equation

of a circle, with its center at the origin, and a radius equal to the square root

of the number.

Q: What does the equation x squared plus y squared represent?

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No, It's a a quadratic equation because you have X squared.

11

Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.

You can't because it is not a quadratic equation.

It is a quadratic equation in x.

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No, It's a a quadratic equation because you have X squared.

11

Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.

You can't because it is not a quadratic equation.

a=64 b=8 (x+16x+64)=(x+8)^2

x = Â±2

It is the equation of a parabola.

It is a quadratic equation in x.

It is the Cartesian equation of an ellipse.

(-4,-6)

If you mean: x squared+9x+14 = 0 then by using the quadratic equation formula x = -2 or x = -7

The center of the circle given by the equation (x - 3)2 plus (y + 2)2 = 9 is (3,-2).