Rileighbrooks1838 Rileighbrooks1838

21-05-2017
Mathematics

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Factor x^2-25, 3x^2-12x-15, and x^3+2x^2+3x+6 .

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21-05-2017

1)(X-5)(X+5)
2)(3x+3)(X-5). -15x+3x= -12x and 3x-5=-15
X^3+2x^2. +3x+6
X^2(X+2). 3(X+2)
Both have (X+2) in common so answer is
3). (X^2+3)(X+2)

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