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Factor the binomial completely. x2−81
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Factor the binomial completely. x2−81

Factor the binomial completely. x2−81-example-1
User Elnatan Derech
by
5.1k points

1 Answer

2 votes

Answer:

(x - 9)(x + 9)

Explanation:

x² - 81 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), then

x² - 81

= x² - 9²

= (x - 9)(x + 9)

User Andy Madge
by
5.5k points
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