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... her problem, Gu Jin also casually wrote an equation on the blackboard, which was just a quadratic equation.
Then he gave the chalk to Gu Yang and motioned her to do the question with his eyes.
Gu Yang blinked, "Didn't you see the quadratic equation?"
Gu Jin raised his chin slightly, proud and coquettish: "Infer other things from one example. Will it be? Do you want me to teach you?"
Gu Yang thought to himself, this little kid is so cute, but he looks quite ...
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