Question

If one zero of the quadratic ploynimial x2+(a+1) x-6 is 2. then what is the value of a?

Answer 1

Heya !!!



P(X) = X²+( A + 1 ) X - 6


P(2) = (2)² + ( A + 1 ) 2 - 6




=> 4 + 2A + 2 -6 = 0



=> 2A + 6 - 6 = 0



=> 2A = 0


=> A = 0/2 = 0



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