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Factorise 81 - x^2 81 - x {}^(2) ​

Factorise 81 - x^2 81 - x {}^(2) ​
asked 217k views
4 votes
Factorise 81 - x^2

81 - x {}^(2)
​

asked
User Carlos Rojas
by
7.9k points

1 Answer

5 votes

Answer:

(9 - x) × (9 + x)

Explanation:

81 - x^2

= 9^2 - x^2

= (9 - x) × (9 + x)

answered
User Sastorsl
by
7.5k points
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