x²- 9 = 0 graph
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Answer:
x = -3 or x = 3 ( graph)
Step-by-step explanation:
Given,
x² - 9 = 0
= x² - 3² = 0
Using the identity, (a² -b)² = (a + b) (a-b)
(x + 3) ( x - 3) = 0
x + 3 = 0 or x - 3 = 0
x = -3 or x = 3
We can plot the graphs for x = -3 or x = 3.
Graph is attached please see.
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