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
MCQ
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
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Identify constant, linear, quadratic and cubic polynomials from the following polynomials:
`h(x)=-3x+1/2`
If `x = 2` is a root of the polynomial `f(x) = 2x2 – 3x + 7a` find the value of a.
f(x) = x3 −6x2 − 19x + 84, g(x) = x − 7
f(x) = 2x3 − 9x2 + x + 12, g(x) = 3 − 2x
f(x) = x3 − 6x2 + 11x − 6, g(x) = x2 − 3x + 2
Show that (x − 2), (x + 3) and (x − 4) are factors of x3 − 3x2 − 10x + 24.
In the following two polynomials, find the value of a, if x + a is a factor x3 + ax2 − 2x +a + 4.
x3 + 2x2 − x − 2
(x+1) is a factor of xn + 1 only if
Factorise the following:
2a2 + 9a + 10
