http://prntscr.com/aggnfg Help please! im stuck! @ganeshie8 @iambatman @compassionate
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (baby_bear69):
@inkyvoyd @mathmath333
OpenStudy (baby_bear69):
@jhonyy9
OpenStudy (baby_bear69):
@Jaynator495
OpenStudy (baby_bear69):
@Qwertty123
OpenStudy (fortytherapper):
I just realized this only has one more solution
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (baby_bear69):
Does one of them involve 13, something? lol
OpenStudy (fortytherapper):
What kind of function is \[b^2\]
If you want to change it to x, then \[x^2\]
What kind of function is that
OpenStudy (fortytherapper):
And yeah, sort of
OpenStudy (baby_bear69):
What kind of function?? idk.. o.o
OpenStudy (fortytherapper):
Like, is it linear, parabola, cubic, etc
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (baby_bear69):
cubic i think
OpenStudy (fortytherapper):
Good guess, it's a parabola (The U shaped curve), so at most, it can have 2 solutions (like this one that we are given)
OpenStudy (fortytherapper):
Now would you agree that
\[x^2-10x=39\] is the same as \[x^2-10x=39+0\]
OpenStudy (baby_bear69):
Ohh okay, so should i just try to graph it?? or
OpenStudy (fortytherapper):
We don't have to graph it
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (baby_bear69):
oh! okay
OpenStudy (baby_bear69):
Yes thats the same
OpenStudy (fortytherapper):
Alright, so now we solve for 0. We can subtract 39 from both sides
\[x^2-10x-39 = 0\]
Now to find that other solution, we must factor. We already have 1 solution of +13, so that's nice
\[(x + 13)(x (+/-)?)\]
So what number multiplied by 13 can get us that -39 (that's in our new equation)?
OpenStudy (baby_bear69):
-3
OpenStudy (fortytherapper):
And there's the solution set completion
Still Need Help?
Join the QuestionCove community and study together with friends!