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Answered

3. Find k so that x + 3 is a factor of 2x3 + kx2 - 8x + 3.
A. 2
B. -2
C. 3
D.-3​

Sagot :

OnekPHgo

Answer:

C

Step-by-step explanation:

Remainder theorem

If x=-3

Then,

2(-3)^3 +k(-3)^(2)-8(-3)+3 =0 (is zero if it is a factor)

Then

2(-27)+k(9)+24+3=0

-54+9k+27=0

-27+9k=0

9k =27 divide both sides by 9

k=3

Sana nakatulong ako sayo lods:),

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