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1. Determine whether x-5 is a factor of
a. 3x³- 12x²-5x -50
b. 3x³- 4x²+ 3x - 160
C. X³- 4x² - 25
PLEASE SHOW YOUR SOLUTION


Sagot :

Answer:

letter C.

Step-by-step explanation:

=x^3-5x^2+x^2-25

=x^2(x-5)+(x-5) (x+5)

=(x-5)(x^2+x+5)

pabrainliest salamat