SOLUTION: ({{{ 2sqrt( 6 ) }}}+{{{ 7sqrt( 3 ) }}})({{{ 2sqrt( 6 ) }}}-{{{ 7sqrt( 3 ) }}})

Question 97610: (+)(-)
Found 2 solutions by mathslover, stanbon:
Answer by mathslover(157) (Show Source): You can put this solution on YOUR website!
(+)(-)
if = x
and =y then the given expression can be wriiten as

Substituting back the values of x and y we have

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
2sqrt( 6 ) }}}+)(-)
---------------
(2sqrt(6) + 7sqrt(3) (2sqrt(6) - 7sqrt(3))
= (2sqr(6))^2 - (7sqrt(3))^2
= 4*6 - 49*3
= 24 - 147
= -123
=============
Cheers,
Stan H.
RELATED QUESTIONS
7SQrt(18)-2SQrt(72) (answered by ikleyn,MathTherapy)
7sqrt(3)/sqrt(10)+sqrt(3)-2sqrt(5)/sqrt(6)+sqrt(5)-3sqrt(3)/sqrt(15)+3sqrt(2) (answered by jsmallt9)
Simplify each radical expression. 5sqrt(32)-7sqrt(8) and... (answered by MathLover1)
Add or subtract. Simplify by collecting like radical terms, if possible.... (answered by Tatiana_Stebko)
Hi tutors, this is a extra points question for a quiz, but my professor never teaches us... (answered by Edwin McCravy,KMST)
{{{ 7sqrt(72) - 2sqrt(50)}}} {{{ 2^3sqrt(54x^4) - 3^3sqrt(16x^4)}}} {{{ 6sqrt(98) - (answered by jim_thompson5910)
Help me with this Question please??? {{{ 7sqrt( 6 ) }}}+{{{ 8sqrt( 3 ) }}}-{{{ sqrt( 6 ) (answered by checkley71)
What would 8sqrt(6)-2sqrt(3) all over 2sqrt(3)... (answered by Alan3354)
multiply ( 2sqrt(3) - 4sqrt(6) )( 3sqrt(3) + 6sqrt(6)... (answered by jsmallt9)