How do you simplify sqrt(3x^5 )/ sqrt(8x²)?

1 Answer
Apr 29, 2017

(sqrt6)/4

Explanation:

(sqrt3x^5)/(sqrt8x^2)

:.=(sqrt(3*x*x*x*x*x ))/sqrt(2*2*2*x*x)

:.color(blue)(sqrtx xx sqrtx=x

:.color(blue)(sqrt2 xx sqrt2=2

:.=(x^2sqrt(3x))/(2x^2sqrt2)

:.=(sqrt(3x))/(2sqrt2)

:. color(blue)((2sqrt2)/(2sqrt2)=1/1

:.=(sqrt(3x))/(2sqrt2) xx (2sqrt2)/(2sqrt2)

:.color(blue)(sqrt2 xx sqrt2=2

:.=(cancel2sqrt6)/cancel8^4

:.color(blue)(=sqrt6/4

check:

Let x=1

(sqrt(3*1^5))/(sqrt(8*1^2))

color(blue)((sqrt(3))/(sqrt(8))=0.612372435

and color(blue)(sqrt6/4=0.612372435