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
Identify constant, linear, quadratic and cubic polynomials from the following polynomials:
`r(x)=3x^2+4x^2+5x-7`
If `f(x) = 2x^2 - 13x^2 + 17x + 12` find f(2)
f(x) = 4x3 − 12x2 + 14x − 3, g(x) 2x − 1
f(x) = x4 − 3x2 + 4, g(x) = x − 2
Find the remainder when x3 + 3x2 + 3x + 1 is divided by x.
2y3 + y2 − 2y − 1
If x + 1 is a factor of the polynomial 2x2 + kx, then k =
When x3 − 2x2 + ax − b is divided by x2 − 2x − 3, the remainder is x − 6. The values of a and b are respectively
If x2 − 1 is a factor of ax4 + bx3 + cx2 + dx + e, then
If x + 2a is a factor of x5 – 4a2x3 + 2x + 2a + 3, find a.
