Question

If one
of the
zeroes
of the quadratic
polynomial x² + 3x+k is 2, then the
value of k is
(a) 10
(b) - 10
(c) - 7
(d) -2 ​

Answer 1

Answer:

k=(-10)

Step-by-step explanation:

If x=2

= x^2+3x+k=0

= (2)^2+3*2+k=0

= 4+6+k=0

= 10+k=0

= k=(-10)

Hope u unerstood...

Answer 2

Answer:

x²+3x+k=0

put the value:- x= 2

then,

(2)²+3*2+k = 0

4+6+k =0

10+k =0

k = -10

Step-by-step explanation:

I hope you will understand