Advertisements
Advertisements
प्रश्न
If x − a is a factor of x3 −3x2a + 2a2x + b, then the value of b is
विकल्प
0
2
1
3
Advertisements
उत्तर
As (x-a)is a factor of f(x) =x3 −3x2a + 2a2x + b
i.e. f(a) = 0
`a^3 - 3a^3 + 2a^3 +b =0`
Thus,b = 0
APPEARS IN
संबंधित प्रश्न
Write the coefficient of x2 in the following:
`9-12x +X^3`
Identify constant, linear, quadratic and cubic polynomials from the following polynomials:
`q(x)=4x+3`
If the polynomials ax3 + 3x2 − 13 and 2x3 − 5x + a, when divided by (x − 2) leave the same remainder, find the value of a.
f(x) = x5 + 3x4 − x3 − 3x2 + 5x + 15, g(x) = x + 3
If x3 + 6x2 + 4x + k is exactly divisible by x + 2, then k =
If x − 3 is a factor of x2 − ax − 15, then a =
The value of k for which x − 1 is a factor of 4x3 + 3x2 − 4x + k, is
When x3 − 2x2 + ax − b is divided by x2 − 2x − 3, the remainder is x − 6. The values of a and b are respectively
Factorise the following:
m2 + 2mn – 24n2
Factorise the following:
`sqrt(5)"a"^2 + 2"a" - 3sqrt(5)`
