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Mathematics 10 Online
OpenStudy (anonymous):

someone please help me graph and solve y=x2+8x+15

OpenStudy (anonymous):

first you need to find where it equals 0 by solving the quadratic formula

OpenStudy (anonymous):

it factors to what? (x+?)(x+?)

OpenStudy (anonymous):

ill give you one (x+3)(x+?)

OpenStudy (anonymous):

do you know how to solve for y=0?

OpenStudy (anonymous):

Yeah I'm trying to figure it out right now. Thank you for replying by the way

OpenStudy (anonymous):

I actually went through another way. I first found the a, b and c but then I plugged them into x=-b/2a and then after I got -4, I plugged it back into the original equation

OpenStudy (anonymous):

Now I just don't know what to do cause I'm stuck on 16x-47

OpenStudy (anonymous):

=(-b+-Squr(b^2-4ac))/2a

OpenStudy (anonymous):

Okay thank you.

OpenStudy (fateal):

OpenStudy (anonymous):

Thank you so much. Really. you're a lifesaver

OpenStudy (fateal):

me???

OpenStudy (fateal):

np i guess :') uk how to say thank you tho xD

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