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15-02-2018
Mathematics

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What is the simplier form of the radical expression 3sqer125x^21?

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tn0982p46cab tn0982p46cab

22-02-2018

I am guessing that you mean 3√(125x^21). If not, forgive me.

So you know that 125= 5 x 5 x 5
In this case, you have 25 x 5. You can square root the 25 to make 5. So now you have 3 x 5√(5x^21).

x^21= x^20 × x. Remember that √(x^20) = x^10.

So you have 3 x 5 × x^10√(5x)= 15x^10√(5x).

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