ASVAB Arithmetic Reasoning Practice Test 451322

Question 3 of 5
Multiplying & Dividing Exponents

To multiply terms with the same base, multiply the coefficients and add the exponents. To divide terms with the same base, divide the coefficients and subtract the exponents. For example, 3x2 x 2x2 = 6x4 and \({8x^5 \over 4x^2} \) = 2x(5-2) = 2x3.

What is 9y5 x 9y4?

18y20
81y20
81y9
81y4