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What is sqare root of 2 minus 10 sqaure root of 98?

j3rry12345

by j3rry12345 at November 21, 2011

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98 = 2 * 49 so SQR(98) can be changed to SQR(2)SQR(49).  Then write your problem as [SQR (2) - 10*SQR(2)SQR(49)].   Facto out SQR (2) SQR(2)[ 1-10*SQR(49)] SQR (2)[ 1-10*7] SQR (2)[1-70] SQR(2)[69] or 69*(SQR(2))

kroo_jteague kroo_jteague November 22, 2011

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