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Mathematics 23 Online
OpenStudy (anonymous):

Identify the factors of 9x2 + 24x + 16

jimthompson5910 (jim_thompson5910):

This is a perfect square. We can write 9x^2 as (3x)^2 and write 16 as 4^2. Finally, notice how the middle coefficient 24 = 2*3*4 (two times the first and last coefficient) So it factors to (3x+4)^2

OpenStudy (anonymous):

Factor: x^2 − 4x + 5

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