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prince96
12.12.2019 •
Mathematics
For what value of ‘k’ will (x + 2) be a factor of 3x3 + 4x2 + kx - 8?
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Ответ:
Thus, we can say that the remainder when x = -2 should be 0.
P(-2) = 0;
3(-2)³ +4(-2)² - 2k - 8 = 0
3(-8) + 16 - 2k - 8 = 0
-24 + 16 - 8 - 2k = 0
-16 -2k = 0
-2k = 16
k = -8
Thus, the value for k that will make (x + 2) a factor is k = -8
Ответ:
The answer is D, (y = 8x)
Hope this helps.
r3t40