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OpenStudy (amtran_bus):
what is 2 the squareroot of 5 squared?
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OpenStudy (amtran_bus):
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zepdrix (zepdrix):
Since both terms are included inside the brackets, you have to square both of them. \[\huge (2 \sqrt5)^2=2^2 \sqrt5^2=\qquad 2*2*\sqrt5*\sqrt5\]
OpenStudy (anonymous):
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