SOLUTION: the expression {{{ radical 27 + radical 12 }}} is equivalent to what?

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Question 457640: the expression +radical+27+%2B+radical+12+ is equivalent to what?
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%2827%29+%2B+sqrt%2812%29+=+sqrt%283%2A9%29+%2B+sqrt%283%2A4%29
.
sqrt%283%2A9%29+=+sqrt%289%2A3%29
sqrt%289%2A3%29+=+sqrt%289%29%2Asqrt%283%29
sqrt%289%29%2Asqrt%283%29+=+3%2Asqrt%283%29
.
sqrt%283%2A4%29+=+sqrt%284%2A3%29
sqrt%284%2A3%29+=+sqrt%284%29%2Asqrt%283%29
sqrt%284%29%2Asqrt%283%29+=+2%2Asqrt%283%29
Adding we get...
5%2Asqrt%283%29
.
Answer:
sqrt%2827%29+%2B+sqrt%2812%29+=+5%2Asqrt%283%29
.
Done