SOLUTION: 8. Write the expression in standard radical form: 3/√2 + 5/√2

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Question 209086: 8. Write the expression in standard radical form: 3/√2 + 5/√2
Found 2 solutions by stanbon, MathTherapy:
Answer by stanbon(48535) About Me  (Show Source):
You can put this solution on YOUR website!
Write the expression in standard radical form: 3/√2 + 5/√2
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You have a common denominator of sqrt(2).
Add the numerators and place the sum over the common denominator:
= 8/sqrt(2)

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Cheers,
Stan H.
Reply to stanbon@comcast.net or algebra.com

Answer by MathTherapy(639) About Me  (Show Source):
You can put this solution on YOUR website!
Write the expression in standard radical form: 3/√2 + 5/√2
3%2Fsqrt%282%29+%2B+5%2Fsqrt%282%29
%283%2B5%29%2Fsqrt%282%29 = 8%2Fsqrt%282%29 Add numerators
8%2Asqrt%282%29%2F%28sqrt%282%29%2Asqrt%282%29%29 Rationalize denominator
8%2Asqrt%282%29%2F2 ------> 4cross%288%29%2Asqrt%282%29%2Fcross%282%29 = highlight_green%284%2Asqrt%282%29%29