the quadratic equation whose roots are - 2, 1 is
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Alfa + Beta = -2 ------- (eqn. no. 1)
Alfa*Beta = 1
Now,
Quad. Eqn. = x*x - (alfa + beta)x + alfa*beta
=> Quad. eqn. = x*x +2x + 1
Alfa*Beta = 1
Now,
Quad. Eqn. = x*x - (alfa + beta)x + alfa*beta
=> Quad. eqn. = x*x +2x + 1
gaurav2013c:
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