Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Solve x^2=6x-11

OpenStudy (anonymous):

try to put all the terms on one side, remember that when moving a term to the other side, we change its sign.

OpenStudy (anonymous):

Example: x^2 = 5x + 6. We will have: x^2 - 5x -6 = 0.

OpenStudy (anonymous):

Then, use the quadratic formula.

OpenStudy (anonymous):

\[x = \frac{ - b +/-\sqrt{b^2 - 4ac} }{ 2a }\]

OpenStudy (anonymous):

\[3+2\sqrt{5}\]\[3+i\sqrt{2}\]\[3-2\sqrt{5}\]\[3-i \sqrt{2}\] these are the options there is more than one correct anwser.

OpenStudy (aravindg):

well as violy said above use the quadratic formula once you get all terms to one side ..Tell us what you get ?

OpenStudy (anonymous):

\[3+/-\sqrt{-3^2-22}\] thats what i got

OpenStudy (aravindg):

how did you get that ?

OpenStudy (anonymous):

Quadratic equation

OpenStudy (anonymous):

try to identify a, b and c first when you arrived in the form: ax^2+bx + c =0.

OpenStudy (aravindg):

yep ..can you show how you substituted the terms ?

OpenStudy (anonymous):

careful on plugging-in the values on the quadratic formula..

OpenStudy (anonymous):

a=1 b=-6 and c=11

OpenStudy (aravindg):

thats right !!

OpenStudy (aravindg):

now substitute in quadratic equation

OpenStudy (aravindg):

-b=? b^2=? 4ac= ?

OpenStudy (aravindg):

2a= ?

OpenStudy (anonymous):

i did and then i got stuck on simpflying 6 -6^2 4(1)(11)=44 2(1)=2

OpenStudy (aravindg):

ya that is right !

OpenStudy (aravindg):

now just do operations like additions,subtraction and division

OpenStudy (aravindg):

tell me how the numerator will be ?

OpenStudy (anonymous):

i dont know

OpenStudy (aravindg):

why not ?just put it there!!

OpenStudy (aravindg):

|dw:1365170186062:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!