Question

For what value of k is 3 a zero of the polynomial 2x2 + x + k ?

Answer 1

Hii dear here is your answer


The polynomial is :

2x² + x + k

Suppose, 3 is zero of polynomial for some value of k, then

2x² + x + k = 0

∴2(3)² + 3 + k = 0           (Putting x = 3)
∴2*9 + 3 + k = 0
∴18 + 3 + k = 0
∴21 + k = 0
∴k = -21

Thus, for k = -21, 3 is a zero of the polynomial.



Hope it's help u

Answer 2

ĀNSWĒR ⬆⬆


Thanks ✌✌


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