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| 1. |
If P and Q are the zeroed of the polynomial f(x)= ax²+bx+c. Find the value of p² + q². |
| Answer» (P+Q)=-b/a,PQ=c/a(P+Q)²=P²+Q²+2PQ =(_b/a)²=b²/a²P²+Q²=b²/a²_2c/a=b²_2ac\\a² | |