( a + b ) 2 = a 2 + 2 a b + b 2 < b r / >: ( a − b ) 2 = a 2 − 2 a b + b 2 :: I L o v e M a t h m e t i c s : E = m c 2 :: I L o v e S c i e n c e {\displaystyle (a+b)^{2}=a^{2}+2ab+b^{2}<br/>:(a-b)^{2}=a^{2}-2ab+b^{2}::ILoveMathmetics:E=mc^{2}::ILoveScience}
