Show that (x+5) is a factor of the polynomial
f(x)= x^3+x+3x+115
Answers
Answered by
1
X+5 = -5
F(-5) = - 5×3+(-5)+3×(-5)+115
= 15-2-110
=-97
X+5 is not a factor of x^3+x+3x+115
Answered by
1
Step-by-step explanation:
f(-5)=-5^3+(-5)+3(-5)+115
= -125-5-15+115
= -145+115
=-30
x+5 is not the factor of f(x)=x^3+x+3x+115
Similar questions