Question

if 5 is one of the zeros of the polynomial P(x)=2x²+kx-4 then k=

Answer 1

Answer:

-46÷5 this is my answer

Answer 2

Answer:

k=-46/5

Step-by-step explanation:

Since 5 is given as one of the zeros of P(x) , P(5)=0

P(5)=2×5²+5k-4=0

50+5k-4=0

5k=4-50

5k=-46

$k = \frac{ - 46}{5}$