Step by step explanation
How that k2 +2k +1 became (k+1)2
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How that k2 +2k +1 became (k+1)2
Irrelevant answere will be Reported its urgent......
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Answer:
Step-by-step explanation:
k²+2k+1 is the whole square of (k+1)
=k² +k + k+1
=k(k+1)+1(k+1)
=(k+1)(k+1)
=(k+1)²
k²+2k+1 = (k+1)²
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