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OpenStudy (anonymous):
(4+√50)-(3-√8) a. 1-3√2 b.1+7√2 c. 1+√58 d. 1+√42
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OpenStudy (anonymous):
Its B.
OpenStudy (helder_edwin):
u must know this \[ \large \sqrt{50}=\sqrt{25\cdot2}=\sqrt{25}\sqrt{2}=5\sqrt{2} \]
OpenStudy (anonymous):
Yes Thanks @helder_edwin
OpenStudy (helder_edwin):
do the same with \(\sqrt{8}\):
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