Question

find the zeros of each of the following polynomials and verify the relationship the relationship between the Zeros and the Coefficients: 4x²-17x-21​

Answer 1

Answer

.

x= -1 or x = 21/4

.

method:

4x^2 - 17x - 21 =0

= 4x^2 +4x - 21x -21

= 4x ( x+1) - 21(x+1)

= (4x -21)(x+1)

therefore,

x = -1 or x = 21/4