Mathematics, 26.12.2020 09:10 cyn95xx

F(x)=x^3+2x^2-6x+9 when f(x) is divided by x+a, the remainder is R, when divided by x-a, the reminder is 2R
a) show that 3a^3-2a^2-18a-9=0
b) solve the expression completely

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F(x)=x^3+2x^2-6x+9 when f(x) is divided by x+a, the remainder is R, when divided by x-a, the remind...