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dusya [7]
3 years ago
7

Factor the following difference of perfect squares x^2-81

Mathematics
2 answers:
Margarita [4]3 years ago
7 0

Answer:

(x+9)(X-9)

Step-by-step explanation:

Brrunno [24]3 years ago
5 0

Since both terms are perfect squares, factor using the difference of squares formula,  a ^2 − b^ 2 = ( a + b ) ( a − b )  where  a = x  and  b = 9 . ( x + 9 ) ( x − 9 )

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