Question

Root x minus root 9 equals to 4

Answer 1

Answer :

$\sqrt{x} - \sqrt{9} = 4 \\ \sqrt{x} - 3 = 4 \\ \sqrt{x } = 4 + 3 \\ \sqrt{x} = 7 \\ squaring \: both \: sides \\ x = {7}^{2} \\ x = 49$

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Answer 2

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