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Mathematics
OpenStudy (anonymous):

What is the value of the expression of the following:

OpenStudy (anonymous):

OpenStudy (anonymous):

49

OpenStudy (smurfy14):

49

OpenStudy (anonymous):

I got -49... how did you get positive 49?

OpenStudy (anonymous):

(-8+1)^2 = (-7)^2 = 49

OpenStudy (anonymous):

-7 times -7 is 49, not -49

OpenStudy (anonymous):

if the variable is also negative in councels out to make positive

OpenStudy (anonymous):

oh, miscalculation, lol, thanks

OpenStudy (anonymous):

hmhm:D