JAMB - Mathematics (2012 - No. 11)

Find the remainder when 2x3 - 11x2 + 8x - 1 is divided by x + 3
-871
-781
-187
-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

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