Lesson finding a square root
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Algebra: Square root, cubic root, N-th root
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As I help you solve the problem, you are helping me practice my skills.
You don't have to memorize tremendous number to master this skill. You need one thing----<b>prime factorization</b> Ex. what is the square root of 144. Prime factorization: {{{144=2*72}}} {{{144=2*(2*36)}}} {{{144=2*2*(2*18)}}} {{{144=2*2*2*(2*9)}}} {{{144=2*2*2*2*3*3}}} {{{144=(2^4)*(3^2)}}} Thus, {{{sqrt(144)=sqrt((2^4)*(3^2))=(2^2)*3=4*3=12}}} Gets? Power up, HyperBrain! Please watch our music video at http://www.metacafe.com/watch/1101445/science_avenue/ rate and leave a comment
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