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5 votes

\sqrt{23 {x}^(3 ) }

1 Answer

3 votes

1 Use this rule:

a

b

=

a

b

\sqrt{ab}=\sqrt{a}\sqrt{b}

ab


=√

a


b



x

3

2

3

\sqrt{{x}^{3}}\sqrt{23}

x

3


23




2 Simplify

x

3

\sqrt{{x}^{3}}

x

3


to

(

x

3

)

1

2

{({x}^{3})}^{\frac{1}{2}}

(x

3

)

2


1


(

x

3

)

1

2

2

3

{({x}^{3})}^{\frac{1}{2}}\sqrt{23}

(x

3

)

2


1

23




3 Use this rule:

(

x

a

)

b

=

x

a

b

{({x}^{a})}^{b}={x}^{ab}(xa)b=x

ab

x

322

3{x}^{\frac{3}{2}}\sqrt{23}x2

3√23




4 Regroup terms

23x32

\sqrt{23}{x}^{\frac{3}{2}}

23


x23


Answer: √23x 3/2

User Rithin Chalumuri
by
5.6k points