simplify the following, giving your answer with a positive exponent:
15x^4/5x^-3
To simplify 15x^4/5x^-3, we can use the rule of exponents that states: a^m / a^n = a^(m - n).
In this case, we have 15x^4 / 5x^-3.
Using the rule of exponents, we subtract the exponents:
4 - (-3) = 4 + 3 = 7.
The numerator stays the same, and the denominator becomes x^7.
Therefore, the simplified expression with positive exponent is:
(15x^4) / (5x^-3) = 3x^7.