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25a^(2)-4b^(2)+28bc...

25a^(2)-4b^(2)+28bc

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Factorise: 25a^(2) - 9b^(2) + 12bc - 4c^(2)

Factorize : 25a^(2) - 9b^(2) + 12bc - 4c^(2)

Simplify (5a-2b) (25a^(2)+10ab+4b^(2)_) -(2a+5b) (4a^(2)-10ab+25b^(2)).

Factorise : 4a^(2) - (4b^(2) + 4bc + c^(2))

a^(2)-b^(2)-4bc+4c^(2)

Statement-1: In a !ABC , if 2a^(2)+4b^(2)+c^(2)=4ab+2ac , then cosA=1/4 Statement-2: In a DeltaA BC if cosA=1/4 , then (a+b+c)(b+c-a)=5/2bc

Statement-1: In a !ABC , if 2a^(2)+4b^(2)+c^(2)=4ab+2ac , then cosA=1/4 Statement-2: In a DeltaA BC if cosA=1/4 , then (a+b+c)(b+c-a)=5/2bc