Advertisements
Advertisements
प्रश्न
Factorise the following:
9 – 18x + 8x2
Advertisements
उत्तर
Product = 9 × 8 = 72, sum = −18
Split the middle term as −12x and −6x
9 – 18x + 8x2 = 8x2 – 18x + 9
= 8x2 – 12x – 6x + 9
= 4x(2x – 3) – 3(2x – 3)
= (2x – 3)(4x – 3)
APPEARS IN
संबंधित प्रश्न
Write the coefficient of x2 in the following:
`pi/6x^2- 3x+4`
Write the degrees of the following polynomials:
7
If `f(x)=2x^2-13x^2+17x+12` find `f(0)`
f(x) = x3 − 6x2 + 11x − 6, g(x) = x2 − 3x + 2
Show that (x + 4) , (x − 3) and (x − 7) are factors of x3 − 6x2 − 19x + 84
Find the value of a such that (x − 4) is a factors of 5x3 − 7x2 − ax − 28.
Find α and β, if x + 1 and x + 2 are factors of x3 + 3x2 − 2αx + β.
Find the values of p and q so that x4 + px3 + 2x3 − 3x + q is divisible by (x2 − 1).
Define zero or root of a polynomial.
Factorise the following:
m2 + 2mn – 24n2
