Question

x2-x-2(2+2k) if -4 is the zero of the polynomial​

Answer 1

Answer:

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Answer 2

Answer:

k=4

Step-by-step explanation:

x2-x-2(2+2k)

x=-4

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

16+4-4-4k=0

16-4k=0

16=4k

k=4

verification

16+4-4-16=0

16-16+4-4=0

0+0=0