Square Roots and Exponents
Date: 2/2/96 at 10:58:40 From: Philip Subject: square root and power to 7 Hi there. I have a couple of math problems. My teacher tries to explain these questions but he gets me confused! :) What is a "square root" of something? What are "powers to 7"? Thanxs!
Date: 4/29/96 at 21:24:17 From: Doctor Jodi Subject: square root and power to 7 Hi there! The idea of square roots originally comes from geometry: if you have a square with area 9, how long is each of its sides? Since the area of a square is side*side, the sides of this square are each 3 units long. So 3 is called the square root of 9 since 3*3=9. Does this make sense? Powers are a related idea. When you raise something to a power, you multiply it times itself a certain number of times. For example, 2 to the power of 7 means 2*2*2*2*2*2*2 (2 multiplied by itself 7 times). I hope this is a little bit clearer now... Write us back if you need more help! -Doctor Jodi, The Math Forum
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