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How to factorise 8a3-b3​

How to factorise 8a3-b3​
asked 4.4k views
4 votes
How to factorise 8a3-b3​

asked
User A N M Bazlur Rahman
by
8.0k points

2 Answers

2 votes

Answer:

(2a - b)(4a² + 2ab + b²)

Explanation:

8a³ - b³ ← is a difference of cubes and factors in general as

a³ - b³ = (a - b)(a² + ab + b²) , thus

8a³ - b³

= (2a)³ - b³

= (2a - b)((2a)² + 2ab + b² ), that is

(2a - b)(4a² + 2ab + b²)

answered
User Joe Cheng
by
8.1k points
1 vote

Answer:

Explanation:

How to factorise 8a3-b3​-example-1
answered
User Prasad Pawar
by
7.9k points
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