Factories class 9 maths
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Hi ,
a² - 4b + 2a - b² - 3
= a² + 2a + 1 - 1 - b² - 4b - 3
= a² + 2a + 1 - ( b² + 4b + 4 )
= [ a² + 2 a × 1 + 1² ] - [ b² + 2b× 2 + 2² ]
= ( a + 2 )² - ( b + 2 )²
= [ a + 2 + ( b + 2 )][ a + 2 - ( b + 2 ) ]
= ( a + b + 4 ) ( a - b )
I hope this helps you.
: )
a² - 4b + 2a - b² - 3
= a² + 2a + 1 - 1 - b² - 4b - 3
= a² + 2a + 1 - ( b² + 4b + 4 )
= [ a² + 2 a × 1 + 1² ] - [ b² + 2b× 2 + 2² ]
= ( a + 2 )² - ( b + 2 )²
= [ a + 2 + ( b + 2 )][ a + 2 - ( b + 2 ) ]
= ( a + b + 4 ) ( a - b )
I hope this helps you.
: )
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0
Hi,
Please see the attached file!
Thanks
Please see the attached file!
Thanks
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