factorise:- 4c²-(2a-3b+5c)²
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Step-by-step explanation:
4c²-(2a-3b+5c)²
(2c)²-(2a-3b+5c)²
(2c-2a-3b+5c)(2c+2a+3b-5c)
(7c-2a-3b)(2a+3b-3c)
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