Writing standard equation of a circle | Mathematics II | High School Math | Khan Academy

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Given a circle on the coordinate plane, Sal finds its standard equation, which is an equation in the form (x-a)²+(y-b)²=r².

High School Math on Khan Academy: Did you realize that the word "algebra" comes from Arabic (just like "algorithm" and "al jazeera" and "Aladdin")? And what is so great about algebra anyway? This tutorial doesn't explore algebra so much as it introduces the history and ideas that underpin it.

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Комментарии
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thank you so much, was so worried for my further maths GCSE!!!! This is so simple and makes perfect sense. Keep it up

chroniclesofyash
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pls help me in my homework.. the question is: Reduce the equation of the circle to the general form.
given: x+2(y-x^2)=4+2y^2

what do i do first to make it into a general form? thanks in advance!

akadush
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now I am confident doing A/s level math

freezinganimenz
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sir i suggest you that please do not use red color for black background

muhammadmurad