If x + 2 is a factor of x3 – 2ax2 + 16, then value of a is
(a) 3
(b) 1
(c) 4
(d) 2
Answers
Answered by
30
Answer:
hey frnd here is your answer
Step-by-step explanation:
- If (x+2) is a factor of x³-2ax²+16 then it should satisfy it.
- so just put x= -2 in x³-2ax²+16.
- x³-2ax²+16=0
- (-2)³-2(a)(-2)²+16=0
- -8-2(a)(4)+16=0
- -8-8a+16=0
- 8a=16-8
- 8a=8
- a=1.
so your final answer is-
a=1. so B) is the correct option
I hope you get the right answer
thanks for asking
plzz mark as brainlist..
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