SOLUTION: Please help me with this problem: 2squareroot8-3squareroot50

Algebra ->  Radicals -> SOLUTION: Please help me with this problem: 2squareroot8-3squareroot50      Log On


   



Question 135706: Please help me with this problem:
2squareroot8-3squareroot50

Found 3 solutions by vleith, solver91311, stanbon:
Answer by vleith(2983) About Me  (Show Source):
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
2sqrt%288%29-3sqrt%2850%29

8 = 4 * 2 and 50 = 25 * 2

2sqrt%284+%2A+2%29-3sqrt%2825+%2A+2%29

Remember: sqrt%28ab%29=sqrt%28a%29sqrt%28b%29, so

2sqrt%284%29sqrt%282%29-3sqrt%2825%29sqrt%282%29

2%2A2sqrt%282%29-3%2A5sqrt%282%29

4sqrt%282%29-15sqrt%282%29

-11sqrt%282%29

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2squareroot8-3squareroot50
------------
= 2*2sqrt2 - 3*2sqrt2

= 4sqrt2 - 6sqrt2
= -2sqrt(2)
=============
Cheers,
Stan H.