SOLUTION: I can't seem to get the right answer for this problem. Can anyone help? 2√(50)-√(32)+3√(72)

Algebra ->  Radicals -> SOLUTION: I can't seem to get the right answer for this problem. Can anyone help? 2√(50)-√(32)+3√(72)      Log On


   

Question 624556: I can't seem to get the right answer for this problem. Can anyone help?
2√(50)-√(32)+3√(72)
Found 2 solutions by solver91311, josmiceli:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




Notice that each of the radicands is 2 times a perfect square.

John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+2%2Asqrt%2850%29+%2B+sqrt%2832%29+%2B+3%2Asqrt%2872%29+

Factor out +sqrt%282%29+
+sqrt%282%29%2A%28+2%2Asqrt%2825%29+%2B+sqrt%2816%29+%2B+3%2Asqrt%2836%29+%29+
+sqrt%282%29%2A%28+2%2A5+%2B+4+%2B+3%2A6+%29+
+sqrt%282%29%2A%28+10+%2B+4+%2B+18+%29+
+32%2Asqrt%282%29+
This is the answer if I take all the positive square roots
and no negative square roots. If you need the negative
square roots also, that adds about 9 more answers,
but I won't go into that.