Negative Exponents: Multiplication Involving Negative Exponents
This clip explains negative exponents and how to deal with them. "Think of the whole business as a fraction with a denominator of 1," the clip states. "Then, to change the sign of the exponent, just invert the fraction." The clip notes that, "Â…this...
Negative Exponents: Division Involving Negative Exponents
This clip explains that, when it comes to division involving negative exponents, if the bases are the same, we just subtract exponents. The clip illustrates this rule with a number of examples including 4 to the power of 9 divided by 4 to the power ...
Negative Exponents: Summary: Negative Exponents
This clip summarizes the lesson on negative exponents. It explains that when we say 4 to the power of negative 2, it means 1 over 4 to the power of 2. "If we think of the original number as a fraction with a denominator of 1," the clip states, "...w...
Negative Exponents: Basics of Working With Exponents, The
This clip explains the terms "exponent," "base" and "power," as well as the concept of exponents as a shortcut for multiplying a number by itself one or more times.
Exponents: Summary: Exponents
This clip summarizes the key ideas in the exponents lesson, including powers, factors, bases, and the concepts of squared, square root, and cubed. It also explains how all these ideas can be used to develop a new form of expanded notation.
Exponents: Multiplying Expressions With the Same Base
This clip explains that to multiply expressions with the same base, we simply combine or telescope a complicated expression by adding the exponents together. The clip points out that this only works if the bases are the same. If the bases are differ...
Exponents: Square Roots and Other Terms
This clip reviews key terms introduced in this lesson, including base, exponent, power and squared. The clip then introduces the concept of square root, noting that its symbol looks like a division symbol with a hook in front.
Exponents: Bases and Exponents
This clip explains that an expression like 4 to the seventh power consists of two parts: the base, which in this case is 4, and the exponent, which in this case is 7. The clip also explains how exponents work, stating as an example that 10 to the th...