Question

Factorise:64a^2-9b^2+42abc-49c^2

Answer 1

ARYAN.......PVT....LTD...

Answer 2

Following are the steps for factorizing this equation:

64a^2-9b^2+42abc-49c^2

64a^2-( 3b^2) (-7c^2) + (42bc)

64a^2-( 3b^2 -7c^2-42bc)

64a^2- (3b+7c)^2

(8a^2)- (3b+7c)^2

Ans: (8a-3b+7c)(8a+3b+7c)