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QueenNerdy889
29.03.2020 •
Mathematics
What is the center of the circle X2 + y2 = 28+ 3x?
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Ответ:
The center is
.
The problem:
What is the center of the circle X2 + y2 = 28+ 3x?
Step-by-step explanation:
We need to put anything with an
together and anything with a
together:
Subtract
on both sides:
We need to complete the square for
's. The
's are already done.
Keep in mind:
on both sides so we can use this identity for the left side with the
's:
So the center is
.
The radius is
.
Ответ: