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সমীকরণ x4+a2x2+a4=0 এর মূলগুলি (a বাস্তব) (The roots of equation x4+a2x2+x4=0 are (a real))- )
"People forget their roots"-What does 'root' mean here?
People forget their roots." What does 'root' mean here?
Who wrote the Nobel " Roots" ?