Given A=B2+√9c, then C is equal to
A−B2=√9c⇒9c=(A−B2)2⇒C=9(A−B2)2=(3A−B2)2
a2−b2 is equal to(a) (a−b)2(b) (a−b)(a−b)(c) (a−b)(a+b)(d) (a+b)(a+b)