Images B 1 3 C D

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B 1 3 c d. (A-B)(2a+3b). A*B+3(A+D)-4a. 3b=4c. (3a+b)^2.
(A-B)(2a+3b). A*B+3(A+D)-4a. 3b=4c. (3a+b)^2.

See also