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CBSE Class 9 Answered

space space H o w space t o space d e r i v e space space t h e space f o r m u l a space open parentheses a plus b close parentheses squared left parenthesis a minus b right parenthesis squared equals 4 a b
Asked by agraharianiruddha | 18 Jun, 2018, 10:35: AM
answered-by-expert Expert Answer
(a + b)2 - (a - b) 
= (a2 + 2ab + b2 ) - (a2 - 2ab + b)
= 4ab
 
 
NOTE : Please check your question.
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