Advertisements
Advertisements
प्रश्न
Factorise:
3x2 – x – 4
Advertisements
उत्तर
We can find two numbers such that pq = 3 × (−4) = −12 and p + q = −1
They are p = −4 and q = 3
Here, 3x2 − x − 4
= 3x2 − 4x + 3x − 4
= x (3x − 4) + 1 (3x − 4)
= (3x − 4) (x + 1)
APPEARS IN
संबंधित प्रश्न
Find the value of k, if x – 1 is a factor of p(x) in the following case:
p(x) = x2 + x + k
Find the value of k, if x – 1 is a factor of p(x) in the following case:
p(x) = `2x^2+kx+sqrt2`
Factorise:
6x2 + 5x – 6
Find the factor of the polynomial given below.
`sqrt 3 x^2 + 4x + sqrt 3`
Factorize the following polynomial.
(x2 – x)2 – 8 (x2 – x) + 12
If x + 1 is a factor of the polynomial 2x2 + kx, then the value of k is ______.
Show that 2x – 3 is a factor of x + 2x3 – 9x2 + 12.
If x + 1 is a factor of ax3 + x2 – 2x + 4a – 9, find the value of a.
Factorise the following:
9x2 – 12x + 3
Factorise:
`a^3 - 2sqrt(2)b^3`
