Advertisements
Advertisements
प्रश्न
Factorise the following:
9 – 18x + 8x2
योग
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)
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Algebra - Exercise 3.6 [पृष्ठ १०७]
APPEARS IN
संबंधित प्रश्न
Identify polynomials in the following:
`f(x)=4x^3-x^2-3x+7`
Identify polynomials in the following:
`p(x)=2/3x^3-7/4x+9`
If f(x) = 2x2 - 13x2 + 17x + 12 find f(-3).
What must be added to 3x3 + x2 − 22x + 9 so that the result is exactly divisible by 3x2 + 7x − 6?
x3 − 6x2 + 3x + 10
If x − a is a factor of x3 −3x2a + 2a2x + b, then the value of b is
One factor of x4 + x2 − 20 is x2 + 5. The other factor is
If x2 − 1 is a factor of ax4 + bx3 + cx2 + dx + e, then
Factorise:
2x3 – 3x2 – 17x + 30
Factorise:
x3 – 6x2 + 11x – 6
