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Mathematics 9 Online
OpenStudy (anonymous):

Number 17

OpenStudy (anonymous):

hero (hero):

To solve this, you simply set y = 0, and solve for x. The right-most x will be a bigger value than the leftmost x

OpenStudy (anonymous):

ok i got to x^2-6x+6 ...where do i got from here?

hero (hero):

x^2 - 6x + 6 = 0

OpenStudy (anonymous):

i plugged zero in for y, foiled on one side, and subtracted 3

hero (hero):

Did you figure it out yet?

OpenStudy (anonymous):

nope, just got the wrong answer

OpenStudy (anonymous):

o wait, do i use the quadratic formula?

hero (hero):

Try (4.732, 0)

OpenStudy (anonymous):

its just 4.732 because its only asking for the x coordinate

hero (hero):

I see

OpenStudy (anonymous):

so how did u get that #?

hero (hero):

I approximated \[x = \sqrt{3} + 3\]

OpenStudy (anonymous):

how did u get that from x^2-6x+6=0?

hero (hero):

Well, to be honest, I back tracked to when you had 3 = (x-3)^2 Instead of putting everything on one side, I simply square rooted both sides to get: sqrt{3} = x - 3 Then I added 3 to both sides. Why? Because we wanted to solve for x.

OpenStudy (anonymous):

Ok I see

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