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Mathematics 16 Online
OpenStudy (anonymous):

Factor completely: 5x2 + 20x

OpenStudy (anonymous):

Prime 5(x2 + 4x) x(5x + 20) 5x(x + 4)

jimthompson5910 (jim_thompson5910):

what factors do 5 and 20 have in common?

OpenStudy (anonymous):

5 but 5 is prime

jimthompson5910 (jim_thompson5910):

so we can factor 20 into 5*_____

OpenStudy (anonymous):

4

OpenStudy (anonymous):

so then it can be 5(x2=4x) or 5x(x=4)

jimthompson5910 (jim_thompson5910):

so that means |dw:1403581897978:dw| turns into |dw:1403581920242:dw|

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