2012
Mathematics
JAMB
Find the remainder when 2x3 - 11x2 + 8x - 1 is divided by x + 3
A.
-871
B.
-781
C.
-187
D.
-178
Correct Answer: -178
Explanation
Hence f(x) = 2x3 - 11x2 + 8x - 1 f(-3) = 2(-3)3 - 11(-3)2 + 8(-3) - 1 = 2(-27) - 11(9) + 8(-3) - 1 = -54 - 99 - 24 - 1 = -178
Hence f(x) = 2x3 - 11x2 + 8x - 1 f(-3) = 2(-3)3 - 11(-3)2 + 8(-3) - 1 = 2(-27) - 11(9) + 8(-3) - 1 = -54 - 99 - 24 - 1 = -178THIS WEEK's
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