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podryga [215]
3 years ago
7

Factor the expression X^2-9

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer:

(x+3)(x-3)

Step-by-step explanation:

x²-b² = (x+b)(x-b)

x²-9 = x²-3² = (x+3)(x-3)

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