Determine whether (x-3) is a factor of polynomial x^3-19x+30 or not
Answers
Answered by
3
Answer:
Step-by-step explanation:
27-19*3+30 = 0
27-57+30 = 0
0 = 0
(x-3) is a factor of x³-19x+30
Answered by
5
Answer:
X-3 = 0
==> X = 3
POLYNOMIAL
==> X³ - 19X + 30
PUTTING VALUE OF X
==> (3)³-19(3) + 30
==> 27 - 57 + 30
==> 57-57
==> 0
SO, IT IS A FACTOR OF X³ - 19X + 30
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