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N76 [4]
3 years ago
11

Simplify the following expression completely, where x is greater than or equal too 0.

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
7 0
First you want the numbers under the radical to be the same so you can combine like terms.

x \sqrt{5xy^4} =x \sqrt{5x*^4y} = xy^2 \sqrt{5x}
\sqrt{405x^3y^4} =  \sqrt{5x*81x^2y^4} =9xy^2 \sqrt{5x}
\sqrt{80x^3y^4} =  \sqrt{5x*16x^2y^4} = 4xy^2 \sqrt{5x}

Now add together to get 14xy^2 \sqrt{5x}
svetlana [45]3 years ago
3 0

Answer:

the second one

6xy²√5x


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