Sagot :
Answer:
4k³-2k²+3k+9
Step-by-step explanation:
We can only add SIMILAR TERMS.
3k²-5k²+8k-2 + (N) = 4k³+11k+7

Answer:
K3+5k2+3k+9
Step-by-step explanation:
3k3-5k2+8k-2 +x =4k3+11k+7
Let x be the number
Then,
x= -3k3+5k2-8k+2+4k3+11k+7
Combine like terms,
X= k3+5k2+3k+9
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