1.

Add -2bc+4ca,9bc-2ca+11 and -bc+5ab+6a​

Answer»

Answer:

6bc+2ca+11+5ab+6a

Step-by-step EXPLANATION:

-2bc+4ca+9bc-2ca+11-bc+5ab+6a

-2bc-bc+9bc+4ca-2ca+11+5ab+6a

-3bc+9bc+2ca+11+5ab+6a

6bc+2ca+11+5ab+6a



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