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justinee
 one year ago
Can someone check this for me? (completing the square)
justinee
 one year ago
Can someone check this for me? (completing the square)

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justinee
 one year ago
Best ResponseYou've already chosen the best response.0then i rewrote that into: y = 2(x^2  20x ____) 48 20/2 = 10 then square it and I got 100 y = 2(x^2  20x +100) 48

justinee
 one year ago
Best ResponseYou've already chosen the best response.0then I added 100 to both sides and I got: y + 100= 2(x  10)^2 48 100 100  y = 2(x  10)^2  148

halorazer
 one year ago
Best ResponseYou've already chosen the best response.0You subtracted 100 though ^

Decart
 one year ago
Best ResponseYou've already chosen the best response.1you add 48 to the other side and then also the 100 and the quadratic = 148

Decart
 one year ago
Best ResponseYou've already chosen the best response.1then you can factor the left side

justinee
 one year ago
Best ResponseYou've already chosen the best response.0can you show me that in steps? like from the beginning

Decart
 one year ago
Best ResponseYou've already chosen the best response.1you did it rite just set the equation = 0 then subtract 49 from both sides so 2x^220x=48

Decart
 one year ago
Best ResponseYou've already chosen the best response.1then complete the square and add the 100 to both sides

justinee
 one year ago
Best ResponseYou've already chosen the best response.0so it'd be 0 = 2(x^2  20x + 100) 48 ?

justinee
 one year ago
Best ResponseYou've already chosen the best response.0why do I need to factor that

justinee
 one year ago
Best ResponseYou've already chosen the best response.0Ok I got it thanks! and one more question

justinee
 one year ago
Best ResponseYou've already chosen the best response.0How would I solve: x^2  38x + c also by completing the square

Decart
 one year ago
Best ResponseYou've already chosen the best response.1c is a constant most likely just move it to the other side and complete the square

justinee
 one year ago
Best ResponseYou've already chosen the best response.0what is that going to give me?

justinee
 one year ago
Best ResponseYou've already chosen the best response.0and what would be the next step

justinee
 one year ago
Best ResponseYou've already chosen the best response.00 = (x2  38x ___) +c ?

Decart
 one year ago
Best ResponseYou've already chosen the best response.1square the 38 and do the same to both sides

Decart
 one year ago
Best ResponseYou've already chosen the best response.1so that is on both sides

justinee
 one year ago
Best ResponseYou've already chosen the best response.0okay so far i have: (x^2  38x + 361) = 361 c

Decart
 one year ago
Best ResponseYou've already chosen the best response.1right now you should be able to factor the quadratic which is the point of completing the square

justinee
 one year ago
Best ResponseYou've already chosen the best response.0so like: ____ x___ = 361 ____+___= 38

Decart
 one year ago
Best ResponseYou've already chosen the best response.1right it will be the same number it is squared

Decart
 one year ago
Best ResponseYou've already chosen the best response.1and the first equation was x^210+25=49

Decart
 one year ago
Best ResponseYou've already chosen the best response.1with the second you can't do anything it is most likely to show how you did the work

justinee
 one year ago
Best ResponseYou've already chosen the best response.0how would i write tht in intercept form

justinee
 one year ago
Best ResponseYou've already chosen the best response.0no I also have to rewrite tht in intercept

Decart
 one year ago
Best ResponseYou've already chosen the best response.1the x intercept is +or(7/5,0)
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