Answer:
Step-by-step explanation:
Method used: By extracting square roots
9x² - 49 = 0
9x² = 49 (Addition property of equality)
√9x² = √49 (Extracting the square roots of both sides)
3x = ± 7
3x = ± 7 (Division property of equality)
— —
3 3
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Answers & Comments
Answer:
x = ± 7/3
Step-by-step explanation:
Method used: By extracting square roots
9x² - 49 = 0
9x² = 49 (Addition property of equality)
√9x² = √49 (Extracting the square roots of both sides)
3x = ± 7
3x = ± 7 (Division property of equality)
— —
3 3
x = ± 7/3