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Question
The expression a2+b−ab−a can be factorise as
The expression a2+b−ab−a can be factorise as
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Solution
The correct option is C (a−b)(a−1)
The expression a2+b−ab−a can be written as
a2−ab+b−a
a(a−b)−1(a−b) [Taking 'a' common]
(a−b)(a−1) [Taking (a-b) common]
Henve the factorize form is
(a−b)(a−1)
The expression a2+b−ab−a can be written as
a2−ab+b−a
a(a−b)−1(a−b) [Taking 'a' common]
(a−b)(a−1) [Taking (a-b) common]
Henve the factorize form is
(a−b)(a−1)
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