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Mathematics
OpenStudy (anonymous):

k + (k + 2) Show all properties used for each step to solve.

jimthompson5910 (jim_thompson5910):

k + (k + 2) k + 1(k + 2) ... multiplicative identity k + 1k + 1*2 ... distributive property k+k+1*2 ... multiplicative identity k+k+2 ... multiplication of 1 and 2 2k+2 ... combination of like terms

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