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Which of the binomials below is a factor of this trinomial? 5x2 + 20x + 15
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Which of the binomials below is a factor of this trinomial? 5x2 + 20x + 15

User Amit Deshpande
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2 Answers

1 vote
Factor the following:
5 x^2 + 20 x + 15

Factor 5 out of 5 x^2 + 20 x + 15:
5 (x^2 + 4 x + 3)

The factors of 3 that sum to 4 are 3 and 1. So, x^2 + 4 x + 3 = (x + 3) (x + 1):

Answer: 5 (x + 3) (x + 1)
User Zaynab
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8.1k points
1 vote

factor X + 1 is the answer

User Xdavidliu
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7.2k points
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