It is important to know how to do calculations with exponents and you can only do that if you know the laws of exponents for real numbers. This mathematics lesson for Grades 7, 8 and 9 will help you to be on the lookout for the same bases and see if they are being multiplied or divided. Do you know what is five raised to the power of zero, or what to do with a negative exponent? If you are not sure, then this video is definitely for you.
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