Q17 of 30 Page 36

Find the values of a and b if they are the zeros of the polynomial x2 + ax + b.

a and b are zeroes of equation x2 + ax + b


The polynomial is quadratic


The sum of zeroes of quadratic



⇒ b = –2a …(i)


The product of zeroes of quadratic



⇒ a = 1


Put a = 1 in equation (i)


⇒ b = –2(1)


⇒ b = –2


Hence a = 1 and b = –2


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