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OpenStudy (anonymous):
What is the simplest form of the expression? √45 + √245 -√5
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OpenStudy (the_fizicx99):
√45 = √9 * √5 = 3√5 For √245 I'd use prime factorization. |dw:1392859473615:dw| 3√5 + 7√5 - √5 now add
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