SOLUTION: Factorise : a^2-b^2-4ac+4c^2

Question 1116627: Factorise : a^2-b^2-4ac+4c^2
Found 2 solutions by math_helper, Alan3354:
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Factorise : a^2-b^2-4ac+4c^2
= a^2-4ac+4c^2 - b^2
= (a-2c)^2 - b^2
= (a-2c-b)*(a-2c+b)
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