if(x+3) is a factor of x^3 + 15x^2 + 56x + 20 then find the other factors
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f(x) = x^3 + 15x^2 + 56x + 20
f(-3) = (-3)^3 + 15(-3)^3 + 56(-3) + 20
(-27) + 15(9) + (-168) + 20
(- 27 - 168) + (135 + 20)
(-195) + (155)
(-40)
Hope it helps you
f(-3) = (-3)^3 + 15(-3)^3 + 56(-3) + 20
(-27) + 15(9) + (-168) + 20
(- 27 - 168) + (135 + 20)
(-195) + (155)
(-40)
Hope it helps you
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