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If (x+5) is a factor of 3x^2+14x+k, what is the value of k?
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If (x+5) is a factor of 3x^2+14x+k, what is the value of k?

User Opfau
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1 Answer

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If (x+5) is a factor the equation will equal zero when x=-5 so

3(-5^2)+14(-5)+k=0

75-70+k=0

5+k=0

k=-5

User Paolino
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