Question

for what value of k is -2 a zero of the polynomial 3x² + 4x +2k
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Answer 1

Answer:

• put k as -2 then find by substitution

Step-by-step explanation:

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Answer 2

k = -2 is the right answer

substutinng the value of x in given equation

3×(-2)^2 +4×(-2)+2k=0

3×4 -8 +2k=0

12-8+2k=0

4+2k=0

2k= -4

k= -2

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