Question

The number of polynomials having -2 and 5 as its zeros are- a) 1 b) 2 c) 3 d) more than 3

Answer 1

a)1 because zeroes are -2 and 5  i.e., let a=-2 and b=5.we have formula for finding quadratic equation i.e, x2-(a+b)x+ab=x2-(5-2)x+(5)(-2)=x2-3x-10.x2 is x square.

Answer 2

a)1 polynomial having two zeroes exists only one