How do you simplify (ab^4)(ab^2)?

${a}^{2} {b}^{6}$
In simplifying the given expression, Law of addition of exponents would apply. The exponent of both 'a' is one, hence on multiplication exponents would add to become 2. Likewise the exponents of 'b' would add to become 6. Thus the final result would be ${a}^{2} {b}^{6}$.