The model of the expression x^2 - 9 is (x - 3)(x + 3)
How to model the expression?
The expression is given as:
x^2 - 9
Express 9 as 3^2
x^2 - 3^2
Rewrite the equation as a difference of two squares
(x - 3)(x + 3)
Hence, the model of x^2 - 9 is (x - 3)(x + 3)
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