Question

write the equation in the form axsquared+bx+c=0:
(2/x)squared-4=7

Answer 1

\[(\frac{2}{x})^2 - 4 = 7\]
\[\frac{4}{x^2} - 4 - 7 = 0\]
\[\frac{4}{x^2} - 11 = 0\]
\[4 - 11x^2 = 0\]
got that?

Answer 2

actually you have to rearrange it \[-11x^2 + 4 = 0\]
\[11x^2 - 4 = 0\]
so any unclear steps?

Answer 3

but...it has no b..., there is just the a=11 & the c=-4

Answer 4

yup b = 0

Answer 5

ah......
ok its clear 2 me now

Answer 6

tnx alot

Answer 7

great! that's nice to hear :)