Question

Show that x+5 is A factor of f(x)=x^3+x^2+3^x+115
$f(x) = x {}^{3} + x {}^{2} + 3 {}^{x} + 115$
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Answer 1

Answer:

0

Step-by-step explanation:

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

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