Advertisements
Advertisements
Question
f(x) = 4x4 − 3x3 − 2x2 + x − 7, g(x) = x − 1
Advertisements
Solution
Let us denote the given polynomials as
`f (x) = 4x^4 - 3x^3 - 2x^2 + x - 7`
`g(x) = x-1`
We have to find the remainder when f(x) is divided byg(x).
By the remainder theorem, when f(x) is divided by g(x) the remainder is
`f(1) = 4(1)^4 - 3(1)^3 - 2(1)^2 + 1-7`
` = 4 - 3- 2 + 1- 7`
` = -7`
Now we will show remainder by actual division

So the remainder by actual division is −7
APPEARS IN
RELATED QUESTIONS
Write the degrees of the following polynomials:
`5y-sqrt2`
In each of the following, using the remainder theorem, find the remainder when f(x) is divided by g(x) and verify the result by actual division: (1−8)
f(x) = x3 + 4x2 − 3x + 10, g(x) = x + 4
f(x) = x5 + 3x4 − x3 − 3x2 + 5x + 15, g(x) = x + 3
Find the values of a and b so that (x + 1) and (x − 1) are factors of x4 + ax3 − 3x2 + 2x + b.
Factorize of the following polynomials:
4x3 + 20x2 + 33x + 18 given that 2x + 3 is a factor.
Mark the correct alternative in each of the following:
If x − 2 is a factor of x2 + 3ax − 2a, then a =
One factor of x4 + x2 − 20 is x2 + 5. The other factor is
Factorise the following:
x² + 10x + 24
Factorise the following:
9 – 18x + 8x2
Factorise the following:
(a + b)2 + 9(a + b) + 18
