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Factor w squared minus 81
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3 votes
Factor w squared minus 81

Factor w squared minus 81-example-1
User Monte Jones
by
7.5k points

2 Answers

2 votes

Answer:

The answer is (w-9)(w+9).

User Keston
by
7.6k points
1 vote

Answer:

(w - 9)(w + 9)

Explanation:

w² - 81 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

then

w² - 81

= w² - 9²

= (w - 9)(w + 9)

User Trevor Cook
by
7.4k points
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