Question

A quadratic polynomial in x? Whose zeroes are -1 and 2 is?

Answer 1

Answer:

Let the roots be a= -1 b= 2

Quadratic Equation :--

x²-(a+b)x+ab=0

x²-(-1+2)x+(-1)(2)=0

x²-(1)x+(-2)=0

x²-x-2=0