nᵃ n=base, a=power
When multiplying two monomials of the same base, you add the exponents of the terms and don't change the base.
nᵃ×nᵇ=nᵃ⁺ᵇ
When dividing two monomials of the same base, you subtract the power of the denominator from the power of the numerator and don't change the base.
nᵃ/nᵇ=nᵃ⁻ᵇ
properties of exponent cannot be used if the monomials don't have the same base.