1+(a+2)³ factories it please..
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Answered by
6
Answer:
( 3 + a ) ( a² + b² + 2ab - a - 1 )
Step-by-step explanation:
1 + ( a + 2 )³
It can be also written as 1³ + ( a + 2)³.
a³ + b³ = ( a + b ) ( a² + b² - ab ) Identity / formula
Here,
a = 1
b = a + 2
1³ + ( a + 2 )³
= ( 1 + a + 2 ) [ 1² + ( a + b )² - ( 1 ) ( a + 2 ) ]
= ( 3 + a ) ( 1 + a² + b² + 2ab - a - 2 )
= ( 3 + a ) ( a² + b² + 2ab - a + 1 - 2 )
= ( 3 + a ) ( a² + b² + 2ab - a - 1 )
Hence factorised.
Answered by
1
Answer:
(3+a) (a^2+b^2+2ab-a-1)
Step-by-step explanation:
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