factorise a square -(b-c)square
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(a^2)-(b-c) ^2
(a+b-c) (a-b+c)
This is the answer
(a+b-c) (a-b+c)
This is the answer
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-(b-c)^2
》[ b^2 - 2bc + c^2]
》[ b^2 - 2bc + c^2]
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