easy formula for math
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(a+b) 2=a2+2ab+b2
(a-b)2= a2-2ab +b2
a2- b2= (a+b) (a-b)
(a-b)2= a2-2ab +b2
a2- b2= (a+b) (a-b)
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Answer:
1+1=2
Step-by-step explanation:
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