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Mathematics 15 Online
OpenStudy (anonymous):

What equation results from completing the square and then factoring? x^2+6x=13

OpenStudy (anonymous):

Feel free to go through the steps with me if you want

OpenStudy (anonymous):

Are their more equations or just that one?

OpenStudy (anonymous):

These are my choices. That is the only equation

OpenStudy (anonymous):

Choices being "answers".

OpenStudy (anonymous):

I'm sure you know that though ...

OpenStudy (anonymous):

add 3^2 to both sides, what do you get?

OpenStudy (anonymous):

22

OpenStudy (anonymous):

on the right side

OpenStudy (anonymous):

and the left side?

OpenStudy (anonymous):

9?

OpenStudy (anonymous):

no...try again, you an x there too

OpenStudy (anonymous):

x^2 + 6x + 9

OpenStudy (anonymous):

would you want me to add 9+6?

OpenStudy (anonymous):

now factorize the above, know how?

OpenStudy (anonymous):

would that be dividing?

OpenStudy (anonymous):

If not then I guess not

OpenStudy (anonymous):

no, grouping...

OpenStudy (anonymous):

it's (x+3)^2

OpenStudy (anonymous):

Oh

OpenStudy (anonymous):

Please understand I'm slow haha

OpenStudy (anonymous):

if you expand the above you'll get x^2 + 6x + 9

OpenStudy (anonymous):

(x+3)^2=22 would be my answer I assume?

OpenStudy (anonymous):

yep

OpenStudy (anonymous):

Thanks for the help

OpenStudy (anonymous):

no worries mate

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