Question

f one zero of the quadratic polynomial x2

+ 3x + k is 3, then the value of k is

(a) 10 (b) –18 (c) 5 (d) –5​

Answer 1

Answer:

(b)-18

Step-by-step explanation:

p(x)=(x)2+3x+k

p(3)=(3)2+3(3)+k=0

=9 +9+k=0

=18+k=0

=k=-18

Answer 2

Step-by-step explanation:

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