Rational Exponents and Radicals
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Lesson Description:
An explanation of what rational exponents mean and how they relate to radicals.
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Questions answered by this video:
- What is a rational exponent and how is it the same as a radical?
- How is 4^(1/2) the same as the square root of 4?
- How do you rewrite a rational exponent as a radical expression?
- What is an irrational number?
- How do you simplify 27^(1/3) or the cube root of 27?
- How do you simplify a number raised to a fractional or rational exponent if the numerator is not 1?
- How do you rewrite 4^(4/3) as a radical expression?
- How do you simplify the square root of 16/9?
- How do you simplify the square root of 9*16?
- How do you simplify the cube root of 8*64?
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Staff Review
This lesson explains how a rational or fractional exponent is the same as a radical, how to move back and forth between rational exponents and radical expressions, and how to compute values / simplify these expressions. Many problems are shown and explained in this video.
