How do you simplify sqrt(24a^3b)?

1 Answer
Apr 11, 2015

Remember that sqrt(pq) = sqrt(p) * sqrt(q)

So we can "break-up" the given square root:
sqrt(24a^3b)

(separate out the different "kinds" of terms within the root)
= sqrt(24) * sqrt(a^2) * sqrt(b)

(extract squares within each root)
= sqrt(4)sqrt(6) * sqrt(a^2)sqrt(a) * sqrt(b)

(simplify the square root of squares)
= 2sqrt(6) * asqrt(a) * sqrt(b)

(recombine for simplicity)
= 2asqrt(6ab)