simplify using exponent rules. leave answer in exponential form.

(x^4) (x^6)
---------------
x^3

To simplify this expression using exponent rules, we can multiply the exponents and subtract the denominator's exponent from the numerator's exponent.

(x^4)(x^6) ÷ x^3

Combining the exponents, we have:

x^(4 + 6) ÷ x^3

Simplifying further, we subtract the exponents:

x^10 ÷ x^3

Finally, we subtract the exponents:

x^(10 - 3) = x^7

The simplified answer in exponential form is x^7.