Question

Is x + 5 a factor of x3 + 3x2 + 15x + 20 do it by long division method​

Answer 1

Step-by-step explanation:

x+5 ) x^3 + 3x^2 + 15x + 20 ( x^2 - 2x + 25

x^3 + 5x^2

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- 2x^2 + 15x

- 2x^2 - 10x

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+ 25x + 20

+ 25x + 125

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- 105

(x + 5) is not factor of this equation.