Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

What are the roots of -12x2 + 11x − 3 = 0?

OpenStudy (anonymous):

OpenStudy (anonymous):

@nopen I got the 2nd one, is it correct?

OpenStudy (anonymous):

just a sec

rishavraj (rishavraj):

nah its not correct @LadyLillyz

OpenStudy (anonymous):

You use the Quadratic Formula, no?

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

But this one is about roots, I'm not to keen on the contrast against roots.

rishavraj (rishavraj):

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

OpenStudy (anonymous):

\[\frac{ 11\pm \sqrt{11^2 -( 4*-12*-3)} }{ 2*-12 }\]

OpenStudy (anonymous):

You do simplify the denom though right, 24 becomes 12?

rishavraj (rishavraj):

@nopen its supposed to be -11 ???

rishavraj (rishavraj):

\[whts \frac{ -11 }{ -24 } \]

OpenStudy (anonymous):

then it's the last option

rishavraj (rishavraj):

yup the last option is the answer

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!