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Mathematics 10 Online
OpenStudy (anonymous):

What is the factored for of the expression 9x^2+12x+4? Please explain.

jimthompson5910 (jim_thompson5910):

9x^2+12x+4 9x^2+6x+6x+4 ... See note below (9x^2+6x)+(6x+4) 3x(3x+2)+(6x+4) 3x(3x+2)+2(3x+2) (3x+2)(3x+2) Note: 9*4 = 36, the numbers 6 and 6 both multiply to 36 and add to 12 at the same time

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