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Answer:
x = ± 2
Step-by-step explanation:
Given
x² = 4 ( take the square root of both sides )
x = ± = ± 2
Since 2 × 2 = 4 and - 2 × - 2 = 4
Answer:
x = ± 2
Step-by-step explanation:
Given
x² = 4 ( take the square root of both sides )
x = ± = ± 2
Since 2 × 2 = 4 and - 2 × - 2 = 4