Simply:
(x+1)2 - (x-1) 2
Answers
Answered by
0
Answer:
4
Step-by-step explanation:
= (x+1)2 - (x-1)2
= 2(x+1) - 2(x-1)
= 2x + 2 - 2x + 2
= 2+2
= 4
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