Question

3. Show that x - 3 is a factor of the polynomial x^3+ x^2 - 17x + 15.
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Answer 1

here's your answer............

Answer 2

Answer:

x-3 is a factor .... Therefore, x-3=0

x=3

f(x)= x^3 + x^2-17x+15

f(3)=3^3+3^2-17(3) +15 ( by factor

theorem

=27+9-51+15

=36-51+15

=51-51

=0

Hence proved , since remainder is 0