SOLUTION: x^2+y^2-4y+4=100 how do I solve and get 100 to 0?

SOLUTION: x^2+y^2-4y+4=100 how do I solve and get 100 to 0?

Algebra.Com

Question 998849: x^2+y^2-4y+4=100
how do I solve and get 100 to 0?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
......this is equation of a circle; so, standard formula is where and are and coordinates of the center, and is a radius
...complete square

or,

so, you have ,, and
center: at (,)

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