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Use the grouping method to factor the polynomial below completely 3x^3+9x^2+5x+15​

User TecBeast
by
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2 Answers

4 votes

Answer:

^^^^^

(3x^2+5)(x+3)

Explanation:

User Thomas Banderas
by
8.2k points
2 votes

Answer:

(x+3)( 3x^2 +5)

Explanation:

3x^3+9x^2+5x+15​

Split into two groups

3x^3+9x^2 +5x+15​

Factor 3x^2 out of the first group and 5 out of the second group

3x^2 ( x+3) + 5(x+3)

Factor out x+3

(x+3)( 3x^2 +5)

User Yoonjesung
by
8.2k points

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