Question

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

Answer 1

Answer:

i think 10

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Answer 2

Step-by-step explanation:

x²+3x+k=0

products of root=k/1

(1st)(2nd)=k

(1st)(2)=k

sum of root =-3

1st+2=-3

1st=-3-2

1st=-5

so

(-5) (2)=k

k=-10

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