Question

Q.1. If one of the zeroes of the quadratic polynomial x square + 3
x + k is 2, then the value of k is:
a) 10
b) -10
c) -7
d) -2
​

Answer 1

Answer:

(b)-10

Step-by-step explanation:

x²+3x+k=0

(2)²+3(2)+k=0

4+6+k=0

k= -10

HOPE THIS IS HELPFUL TO YOU

PLEASE MARK AS BRAIN LIST ANSWER

Answer 2

Answer:

b) -10

Step-by-step explanation:

Given, polynomial is p(x) = x² + 3x + k

one of the zeroes of the quadratic polynomial is 2

=> p(2) = 0

=> (2)² + 3(2) + k = 0

=> 4 + 6 + k = 0 => k = -10