Question

For what value of ‘b’ is (- 2) a zero of polynomial 3z2 + 4z + 2b

Answer 1

Answer:

b = -2

Step-by-step explanation:

==: 3z² + 4z + 2b = 0     ,      at z = -2

==: 3*(-2)² + 4*(-2) + 2b = 0

==: 12 - 8 + 2b = 0

==: 4 + 2b = 0

==: 2b = -4

==: b = -2

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