show that (x+5) is a factor of the polynomial
f(x)=X^3 +x^2 +3x+115
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Answered by
62
If (x+5) is a factor of f (x) then x+5=0:x=-5:should satisfy f (x)
Source putting -5 in f (x)...
(-5)³+(-5)²+3×(-5)+115
=-125+25-15+115
=0
Hence proved.
Source putting -5 in f (x)...
(-5)³+(-5)²+3×(-5)+115
=-125+25-15+115
=0
Hence proved.
Answered by
21
Answer:
P (x )= x^3+x^2+3x+115 , g (x)
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