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:
`9-12x +X^3`
Identify polynomials in the following:
`h(x)=x^4-x^(3/2)+x-1`
f(x) = 2x4 − 6x3 + 2x2 − x + 2, g(x) = x + 2
If the polynomials 2x3 + ax2 + 3x − 5 and x3 + x2 − 4x +a leave the same remainder when divided by x −2, find the value of a.
What must be added to 3x3 + x2 − 22x + 9 so that the result is exactly divisible by 3x2 + 7x − 6?
Using factor theorem, factorize each of the following polynomials:
x3 + 6x2 + 11x + 6
x4 − 7x3 + 9x2 + 7x − 10
If f(x) = x4 − 2x3 + 3x2 − ax − b when divided by x − 1, the remainder is 6, then find the value of a + b
If x3 + 6x2 + 4x + k is exactly divisible by x + 2, then k =
If x + 2a is a factor of x5 – 4a2x3 + 2x + 2a + 3, find a.
