#simple one
101 messages · Page 1 of 1 (latest)
if?
i suppose it asks us to simplify the expression @mossy canyon
oh ok
yeah
yep
not smth like 7 + 2 * sqrt(6)?
712√6
weird
hmm
can you get it?
oh
$x = \sqrt{\sqrt{6} + 6 + (\sqrt{7 + 2\sqrt{6}})} - \sqrt{6}$, right?
John Math
yeah yeah
are you sure? please double check
right so
I like your handwriting
thats not even mine 💀💀
if im correct, the answer should be 1
thats my friend's
is there like
procedurs
the steps
observe
observing
we have this expression here
$x = \sqrt{\sqrt{6} + 6 + (\sqrt{7 + 2\sqrt{6}})} - \sqrt{6}$
John Math
John Math
okay
we know that 7 = 6 + 1
yeah
John Math
noticed anything?
$\sqrt{\sqrt{6}^2 + 2\cdot 1\cdot\sqrt{6} + 1^2}$
John Math
we notice that it is equal to $(\sqrt{6}+1)^2$
John Math
John Math
which is obviously just $\sqrt{6} + 1$
John Math
now back to our expression
yeah
$x = \sqrt{\sqrt{6} + 6 + (\sqrt{7 + 2\sqrt{6}})} - \sqrt{6}$
John Math
John Math
so far so good?
so now lets group terms and see what we can do here
$x = \sqrt{6 + 2\sqrt{6} + 1} - \sqrt{6}$
John Math
familiar, isnt it?
here
John Math
and square roots cancel out
damn
we're left with x = 1