Question

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Q1.
If one zero of the quadratic polynomial x² + 3x + k is 2, then the value of k is
(a) 10
(b) -10
(c) 5
(d) -5​

Answer 1

Answer:

Simply put 2 in place of x and equate the whole equation equal to zero.........

Have a look here.......

x² + 3x + k = 0

(2)² +3(2) + k = 0

4 + 6 + k = 0

10 + k = 0

k = -10.

So, k is -10......☺️☺️

Answer 2

k = -10.

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