Mathematics
10 Online
OpenStudy (anonymous):
2x-x=5/x-1 when x is -3
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OpenStudy (anonymous):
and need help whit his \[3\sqrt{27/64}\]
OpenStudy (anonymous):
is x -1 or just 1
OpenStudy (anonymous):
ok what about the other one
OpenStudy (anonymous):
your problem is wrong.
OpenStudy (anonymous):
yea
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OpenStudy (anonymous):
wait never mind ok
2(-3)-(3)/(-3)-1 =-9/-4 yea wrong problem
OpenStudy (anonymous):
Thats what I believe too..
OpenStudy (anonymous):
\[3\sqrt{27/64}\] need help wit this one
OpenStudy (anonymous):
and need help whit 2xsq-x+5 /x-1 when x= -3
jhonyy9 (jhonyy9):
i have missed one minus
correct is
-6+3=5/-4
-3=5/-4
12=5
- so x=-3 not is solution
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OpenStudy (anonymous):
27 is 3^3 and 64 is 4^3
so the answer is 3/4
jhonyy9 (jhonyy9):
the radical exercise result is 3/4
jhonyy9 (jhonyy9):
because 3*3*3=27
and 4*4*4=64
OpenStudy (anonymous):
wow
OpenStudy (anonymous):
ok waht about this \[\sqrt{75}/2 +3\sqrt{2}/4\]
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jhonyy9 (jhonyy9):
what sign this ?
OpenStudy (anonymous):
got it
OpenStudy (anonymous):
sq i think 75sq/2+3 2sq/4
OpenStudy (anonymous):
you with me
jhonyy9 (jhonyy9):
ok but this i have thought for wow what sign
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jhonyy9 (jhonyy9):
so sqrt 75 = 5sqrt3 than there is
5sqrt3/2 +3sqrt2/4 =(10sqrt3 +3sqrt2)/4
jhonyy9 (jhonyy9):
this is right understandably ?
OpenStudy (anonymous):
what
OpenStudy (anonymous):
75sq /2 + 3 and 2sq /4