It is: -3x2
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x5+4x4-6x2+nx+2 when divided by x+2 has a remainder of 6 Using the remainder theorem: n = 2
(3x - 5x) + (x2 - 6x2) = -2x -5x2 = -x(2 + 5x)
6x2-24=0 6(x2-4)=0 x= {-2,2}
5x + 10 = 5(x+2) 6x2 + 12x = 6x(x+2) The only common factor is x+2
(6 × 2) + 3 = 15