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Mathematics for IGCSE & O level - Graphs Of Functions (Section 3 - No. 28)

The roots of the equation x² - 8 = 0 is/are?
x = √8
x = 0
x = -√8
x = 2

Explanation

The equation x² - 8 = 0 is equivalent to x² = 8. Solving for x: x = ±√8.

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