Question

If x² + 2 = 23, find the value of x +
.
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Answer 1

Answer:

x²+2=23

x²=23-2

x²=21

x=21½

Answer 2

Answer:

$x ^{2} + 2 = 23 \\ x ^{2} = 23 - 2 \\ x ^{2} = 21 \\ x = \sqrt{21 }$

$x = 4.5825$