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algol13
3 years ago
5

What is the exact value of the expressions the square root of 180 - the square root of 125 + the square root of 5? Simplify if p

ossible.
Mathematics
1 answer:
Paraphin [41]3 years ago
7 0

So for this, we will be simplifying √180 and √125 using the product rule of radicals (√ab = √a * √b)


Starting with √180: \sqrt{180}=\sqrt{10} *\sqrt{18} =\sqrt{5} *\sqrt{2}*\sqrt{9} *\sqrt{2}=3*2*\sqrt{5} =6\sqrt{5}


Now with √125: \sqrt{125}=\sqrt{25}*\sqrt{5} =5\sqrt{5}



Now that we have our simplified radicals, our equation looks like this: 6√5 - 5√5 + √5 . Combine everything, and your answer will be 2√5.

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