Factorise 49 - (a-b)² Step by step
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Answer:
(7+a-b) (7-a+b)
Step-by-step explanation:
49 - (a-b)^2
(7)^2-(a-b)^2
(7+(a-b)) (7-(a-b) [a^2-b^2 = (a+b) (a-b)]
(7+a-b) (7-a+b)
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