SOLUTION: Simplify {{{sqrt(7a)+9*sqrt(28a^3)}}}

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Question 126402: Simplify

sqrt%287a%29%2B9%2Asqrt%2828a%5E3%29
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%287a%29%2B9%2Asqrt%2828a%5E3%29 Start with the given expression



sqrt%287a%29%2B9%2A2a%2Asqrt%287a%29 Simplify sqrt%2828a%5E3%29 to get .


sqrt%287a%29%2B18a%2Asqrt%287a%29 Multiply


sqrt%287a%29%281%2B18a%29 Factor out the GCF sqrt%287a%29


So sqrt%287a%29%2B9%2Asqrt%2828a%5E3%29 simplifies to sqrt%287a%29%281%2B18a%29. In other words, sqrt%287a%29%2B9%2Asqrt%2828a%5E3%29=sqrt%287a%29%281%2B18a%29