5. 已知a,b為實數,且a≠0,如果一多項式f(x)除以ax+b,得商q(x),餘式為r,試問下列何者正確的?


(A)f(x)除以x+,得商q(x),餘式為r 


(B)xf(x)除以ax+b,得商xq(x)-,餘式為


(C)xf(x)除以ax+b,得商xq(x)+,餘式為-


(D)x²f(x)除以ax+b,得商x²q(x)+,餘式為-

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統計: A(0), B(0), C(1), D(0), E(0) #3866668