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timofeeve [1]
2 years ago
13

Find the solutions to x2 = 20.

Mathematics
1 answer:
Gemiola [76]2 years ago
3 0

Answer:

B.

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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