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23 votes
23 votes
√2x³. √10x

Help please

User Mihkorz
by
2.7k points

1 Answer

29 votes
29 votes

You can write as
2 √(5) {x}^(2) or
\boxed{2 {x}^(2) √(5)}

Explanation:

Find product of the groups,


\sqrt{2 {x}^(3) \: . \: 10x}

Regrouping,


\sqrt{2{x}^(3 + 1) \: . \: 10 }

Multiplying,


\sqrt{20 {x}^(3 + 1) }

Add constants,


\sqrt{20 {x}^(4) }

Rewrite 20 as 4 5,


\sqrt{4 \: . \: 5 {x}^(4) }

Rewrite 4 as 2² ,


\sqrt{ {2}^(2) \: . \: 5 {x}^(4) }

Using radical rules,


\sqrt{ {2}^(2) } √(x) √(5)

Reduce root and power,


\underline {2 {x}^(2) √(5)}

User Marsden
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3.1k points