| Questions | 5 |
| Topics | Averages, Exponent to a Power, Greatest Common Factor, Least Common Multiple, Multiplying & Dividing Exponents |
The average (or mean) of a group of terms is the sum of the terms divided by the number of terms. Average = \({a_1 + a_2 + ... + a_n \over n}\)
To raise a term with an exponent to another exponent, retain the base and multiply the exponents: (x2)3 = x(2x3) = x6
The greatest common factor (GCF) is the greatest factor that divides two integers.
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
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.