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natka813 [3]
3 years ago
5

If x powered by 2= 20 what is the value of x ?

Mathematics
2 answers:
laila [671]3 years ago
8 0

Answer:

x = 10

Step-by-step explanation:

10^2= 20, therefore

<h2><u><em>X=10</em></u></h2>
Mashutka [201]3 years ago
3 0

Answer:

x = ± 2\sqrt{5}

Step-by-step explanation:

Given

x² = 20 ( take the square root of both sides )

x = ± \sqrt{20} = ± \sqrt{4(5)} = ±  \sqrt{4} × \sqrt{5} = ± 2\sqrt{5}

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