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PLEASE HELP!!! Susan wants to make 2 square flags to sell at a crafts fair. The fabric she wants to buy is 4 meters wide. She doesn't want any fabric left over. What is the least amount of fabric she should buy?

what equation will help Susan solve her problem?

A2x^2=4x

B.8+2x=2(4x)

C.2x2 = 4x2

D4x^-2x=0