Question

what is the answer of this equation:
(c-3d)²



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Answer 1

Answer:

(c-3d)^2

c^2-2*c*3d+(3d)^2

c^2-6cd+9d^2

Step-by-step explanation:

Answer 2

Step-by-step explanation:

According to the identity (c - 3d)2 =

c^2 -2XcX3d + (3d)^2

= c2 -6cd + 9d2