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Mathematics 17 Online
OpenStudy (ksaimouli):

x^2-x+1/x-3 find x intercpts

OpenStudy (amistre64):

this thing only is zero when the top is zero

OpenStudy (ksaimouli):

could u show plz

OpenStudy (amistre64):

show you ... what? how to plug values into the quadratic formula? im assuming you know the formula that is

OpenStudy (ksaimouli):

|dw:1327858303543:dw|

OpenStudy (ksaimouli):

nope

OpenStudy (amistre64):

\[ax^2+bx+c=0\] \[x=\frac{1}{2a}(-b\pm\sqrt{b^2-4ac})\]

OpenStudy (amistre64):

which is what completing the square proves ....

OpenStudy (ksaimouli):

yes i know this but i dont know hoew to slove this

OpenStudy (amistre64):

if you know this, then you DO know how to solve this. so whre is the issue?

OpenStudy (ksaimouli):

nope i dont know how to slove

OpenStudy (ksaimouli):

i just know the formula

OpenStudy (amistre64):

x^2-x+1 define a, b, and c for me from this

OpenStudy (ksaimouli):

i will draw ok

OpenStudy (amistre64):

if drawing helps, by all means :)

OpenStudy (ksaimouli):

|dw:1327858568209:dw|

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