Question

For what value of K, -4 is a zero of the polynomial x2
- x – (2k+2)?

Answer 1

Answer:

put the value of x=-4 in equation

-4²-(-4) -(2k+2) =0

16+4-(2k+2)=0

20-(2K+2)=0

-(2K+2)=-20

2k+2=20

2k=18

k=9

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