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anonymous
 one year ago
Please help me simplify a quadratic equation. (x^2 + 2x +1) + (y^2 + 4y +4) = 25
anonymous
 one year ago
Please help me simplify a quadratic equation. (x^2 + 2x +1) + (y^2 + 4y +4) = 25

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.3you seem to have two variables there, but each term in parentheses is a perfect square

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3you can rewrite it as \[(x+1)^2+(y+2)^2=25\] so it is the equation for a circle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes, that is what we were supposed to do. It is to find the midpoint of a circle along with the radius

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3it is not a "quadratic equation" nor can you "simplify" it, but you can write it in the standard from for a circle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Terribly sorry, my internet likes to go out on me

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How would I write it in standard form ?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3it is not the internet, is is OS today

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh okay so how would I write it in standard form like you said?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3\[x^2+2x+1=(x+1)^2\] and \[y^2+4y+4=(y+2)^2\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3you get \[(x+1)^2+(y+2)^2=25\] and from that you can read off the center and the radius

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I used an online calculator to try this and ended up with "The center is (1,2) and the radius is 5." Would this be correct? Or would my points have to be positive

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And yes, I understand now

misty1212
 one year ago
Best ResponseYou've already chosen the best response.3that is correct form is \[(xh)^2+(yk)^2=r^2\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, Thank you for all of your help :)
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