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azamat
2 years ago
7

Find the value of "x" in x² -2 = 47Thanks :)​

Mathematics
1 answer:
Dennis_Churaev [7]2 years ago
7 0

~~~~~x^2 -2 = 47\\\\\implies  x^2 = 47 +2 \\\\\implies x^2 = 49\\\\\implies x = \pm\sqrt{49}\\\\\implies x = \pm 7\\\\\text{Hence, }~ x = 7,~~ x = -7

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