Question

Solve x² = 25.
x= 12.5
x = ±5
x = 5
x = ±12.5

Answer 1

x = ±5

Explanation:

x = ±5

Solve x² = 25.

x= 12.5

x = ±5

x = 5

x = ±12.5

x² = 25

x = √25

x = ±5

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check with 5

5² = 25

check with -5

-5² = 25