Question

conjugate this expression please
(12)/(√(7)+2)

Answer 1

you you want to rationalise this?

multiply something into the denominator (and hence the numerator as well) so that the denom. gets converted from (a+b) form into (a^2 - b^2) form.

Answer 2

thank you

Answer 3

no worries! post your answer to verify it :)

Answer 4

\[4\sqrt{7}-8\]

Answer 5

yes, right-o!!!!