Question

if x = -1 is a zero of a quadratic polynomials k x² -5 x -4, then the value of k = ________ (1, -1, 4, -5)​

Answer 1

Answer:

option -b

Step-by-step explanation:

Given:-

x= -1

To find:-

The value of k.

Solution:-

⇒ kx²-5x-4= 0

⇒ k(-1)²-5(-1)-4= 0

⇒ k+5-4= 0

⇒ k+1= 0

⇒ k= 0-1

⇒ k= -1

Therefore, value of k is -1.

Property applied:-

REMAINDER THEOREM

Answer 2

Answer:

I hope you have understood the question.