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14-11-2017
Mathematics

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Factor completely: 3x2 − 17x − 28
(3x + 4)(x + 7)
(3x + 4)(x − 7)
3x2 − 17x − 28
(3x2 + 4)(x − 7)

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DeathTheKid101 DeathTheKid101

14-11-2017

3x^2 + 4x - 21x - 28
x(3x + 4) - 7(3x + 4)
(3x + 4) (x - 7)

Answer: B).

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Аноним Аноним

14-11-2017

3x^2 - 17x - 28
= 3x^2 -21X + 4x -28
= 3x(x - 7) + 4(x - 7)
= (3x + 4)(x - 7)

Answer Link

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