Question

. If 2 is the zero of the polynomial x2 -3x+k, then the value of k is: (a) -4 (b) -2 (c) 2 (d) 4​

Answer 1

Answer:

k=2

Step-by-step explanation:

Put x=2

2²-3(2)+k=0

4-6+k=0

-2+k=0

k=2

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Answer 2

Answer:

(c) 2

Step-by-step explanation:

${x}^{2} - 3x + k = 0 \\ {2}^{2} - 3 ( 2 )+ k = 0 \\ 4 - 6 + k = 0 \\ - 2 + k = 0 \\ k = 2$