Question

\(\sqrt{81m^3}\) Simplify Radical

Answer 1

factor out into prime factors

\(\sqrt{(3)(3)(3)(3)(m)(m)(m)}\)

take out of the square root all that appeared twice

Answer 2

confused >.<

Answer 3

i just factored it out..81 = 9 x 9 right? and m is (m)(m)(m)

\(\sqrt {(9)(9)(m)(m)(m)}\) better?

now take out of the radical the numbers/letters that appeared twice..9 and m appeared twice so take out of the square root 2 of them

\(9m \sqrt{m}\)

do you get that method?