3 years ago

Find the solutions to x2 = 20.

Mathematics

1 answer:

Gemiola [76]3 years ago

3 0

Answer:

Step-by-step explanation:

$x^2=20; \ => \ \left[\begin{array}{ccc}x=\sqrt{20} \\x=-\sqrt{20} \end{array} \ => \ \left[\begin{array}{ccc}x=2\sqrt{5} \\x=-2 \sqrt{5} \end{array}$

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