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anonymous
 one year ago
Easy question....
Why is (a+b)^2 not equal to a^2+b^2? And why is the first one greater?
anonymous
 one year ago
Easy question.... Why is (a+b)^2 not equal to a^2+b^2? And why is the first one greater?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442946857375:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we know that ,[\(a+b)^{2} = a ^{2}+2ab+b ^{2} \] now we can see that \[a ^{2}+2ab+b ^{2} is definitely greater than the a ^{2}+b ^{2} .\] Becuz it has extra value that is "2ab " .

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but when you expand it out dont you also get the 2ab for the second one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah! you r right . Thant's why the 1st one is greater . It has a^2 and B^2 also with 2ab . But the 2nd one only have a^2 and B^2 but no 2ab

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea but I'm saying when you expand out dw:1442947717914:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it makes it equal no?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442947937856:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442948254617:dw
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