Question

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Answer 1

Answer:

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Answer 2

Answer:

(a) k=1

(b) c=-4

c) m=0

Step-by-step explanation:

a³+a²+a+k=0

put a=-1

(-1) ³+(-1)²-1+k=0

-1+1-1+k=0

k=1

(b)

a²+b²+c=4

putting a=2 and b-2

(2)²+(-2)²+c=4

4+4+c=4

c=4-4-4=-4

c=-4

(c) p³-q²+2pq-2p+m=-4

put p=1 and q=-1

(1)³-(-1)²+2(1)(-1)-2*1+m=-4

1-1-2-2+m=-4

m=-4+2+2=0

m=0