nessaaventura nessaaventura

02-03-2019
Mathematics

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factor 3x2 - 6x - 9 completely

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meredith48034 meredith48034

02-03-2019

3(x^2-2x-3)
3(x-3)(x+1)

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wegnerkolmp2741o wegnerkolmp2741o

02-03-2019

Answer:

3(x-3) (x+1)

Step-by-step explanation:

3x^2 - 6x - 9

Factor out a 3

3(x^2 -2x-3)

Now we factor inside the parentheses

What 2 numbers multiply to -3 and add to -2

-3*1 = -3

-3+1 = -2

3(x-3) (x+1)

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