SOLUTION: Given:f(x)=x^3+mx^2+nx+6 1.If (x-1) is a factor of f(x) and f(x) leaves a remainder of 8 when divided by (x-1),calculate the values of m and n 2.Factorise f(x) conpletely

Algebra.Com
Question 1024869: Given:f(x)=x^3+mx^2+nx+6
1.If (x-1) is a factor of f(x) and f(x) leaves a remainder of 8 when divided by (x-1),calculate the values of m and n
2.Factorise f(x) conpletely

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
The description for #1 is wrong. Review the Remainder Theorem. A nonzero remainder means that the factor is not one of the root factors for the function.

You can perform the polynomial division for , very difficult to try to show here. The expression for the remainder will be . The quotient without the remainder will be .

Maybe this is enough to be helpful for you.

RELATED QUESTIONS

Please? thanks. Please solve this? this will be the last thank you :)) The Polynomial... (answered by richwmiller)
The function f is given by f(x)=x^3+2x^2+ax-8 where a is constant.when f(x) is divided... (answered by ikleyn,MathLover1,MathTherapy)
a polynomial f(x) with rational coefficients leaves remainder 15 when divided by x-3 and... (answered by KMST)
please help me urgently.... 1)Find m and n if (x-2) and (x+3) are both factors of... (answered by KMST)
The cubic polynomial f(x) is such that the coefficient of x^3 is -1 and the roots of the... (answered by KMST)
Let f(x) be a polynomial such that f(0) = 4, f(1) = 6, and f(2) = -2. Find the remainder (answered by math_tutor2020)
The expression f(x)=x^3+ax^2+bx-6 is exactly divisible by (x-1), and has a remainder of... (answered by reviewermath)
when a polynomial f(x) is divided by (x-3) the remainder is -9 and when divided by... (answered by robertb)
When a polynomial f(x) is divided by x-3 the remainder is -9 and when divided by 2x-1 the (answered by MathLover1,ikleyn)