New installation Graphic card Nvidia GT 710 not recognized

Hi guys !
I've just installed SLES for SAP Applications 15 SP2 and I only have available 1024*768 screen resolution on my machine, it's not the best :( The graphic car is an NVIDIA 710 GT.
I'm very new in Linux world so i don't know how to investigate this problem.
I hope you can help me.
Thank you and best regards.

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