How do you simplify #sqrt 8 times sqrt 4#?

2 Answers
Aug 13, 2018

Answer:

#4sqrt2#

Explanation:

#"using the "color(blue)"law of radicals"#

#•color(white)(x)sqrtaxxsqrtbhArrsqrt(ab)#

#sqrt8xxsqrt4=sqrt(8xx4)=sqrt32#

#sqrt32=sqrt(16xx2)=sqrt16xxsqrt2=4sqrt2#

Aug 13, 2018

Answer:

#4sqrt2#

Explanation:

#sqrt8xx sqrt 4#

#:.=sqrt(2*2*2)xx2#

#:.=sqrt 2xx sqrt 2=2#

#:.=2 sqrt 2xx2#

#:.=4sqrt 2#