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Can you explain the answer of this question below:
Factorise : 8a3+ b3 + 12a2b + 6a b2
- A:(2a + b) (2a + b) (2a + b)
- B:(2a – b) (2a – b) (2a + b)
- C:(2a-b)(2a-b)(2a-b)
- D:(-2a + b) (-2a + b) (2a + b)
The answer is a.
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Verified Answer
Can you explain the answer of this question below:Factorise : 8a3+ b3+...
8a3 + b3+ 12a2b + 6ab2
8a3 + b3+ 12a2b + 6ab2
= (2a)3 + (b)3 + 3(2a)(b) (2a + b)
= (2a + b)3 | Using Identity VI
= (2a + b)(2a + b)(2a + b)
8a3 + b3+ 12a2b + 6ab2
= (2a)3 + (b)3 + 3(2a)(b) (2a + b)
= (2a + b)3 | Using Identity VI
= (2a + b)(2a + b)(2a + b)
Most Upvoted Answer
Can you explain the answer of this question below:Factorise : 8a3+ b3+...
8a³+b³+12a²+b+6ab² =(2a)³+(b)³+12a²b+6ab² =2a³+b³+6ab(2a+b) =2a³+b³+3(2a)(b)(2a+b) =2a³+b³+3(2a)(b)(2a+b) =(2a+b)³ =(2a+b)(2a+b)(2a+b) Ans
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Can you explain the answer of this question below:Factorise : 8a3+ b3+...
This is because of this property Acube +Bcube= a^3 +b^3=3a^2b+3ab^2
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Can you explain the answer of this question below:Factorise : 8a3+ b3+ 12a2b + 6a b2A:(2a + b) (2a + b) (2a + b)B:(2a – b) (2a – b) (2a + b)C:(2a-b)(2a-b)(2a-b)D:(-2a + b) (-2a + b) (2a + b)The answer is a.
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