Advertisements
Advertisements
प्रश्न
8x3 -125y3 +180xy + 216
Advertisements
उत्तर
8x3 -125y3 +180xy + 216 or, 8x3 -125y3 + 216 +180xy
= (2x)3 + (-5 y)3 + 63 - 3 × (2x)(-5y)(6)
= (2x + (-5y) + 6)((2x)2 + (-5 y)2 + 62 - 2x (-5y ) - (-5y )6 - 6 (2x))
= (2x - 5 y + 6)(4x2 + 25y2 + 36 +10xy + 30 y -12x)
∴ 8x3 -125y3 +180xy + 216 = (2x - 5y + 6)(4x2 + 25 y2 + 36 +10xy + 30 y -12x)
APPEARS IN
संबंधित प्रश्न
Factorize `x^2 + 5sqrt5x + 30`
Factorize the following expressions:
x6 + y6
Factorize the following expressions:
a3 + 3a2b + 3ab2 + b3 - 8
(2x - 3y)3 + (4z - 2x)3 + (3y - 4z )3
If x3 − 3x2 + 3x − 7 = (x + 1) (ax2 + bx + c), then a + b + c =
Evaluate: (3x - 1)(4x3 - 2x2 + 6x - 3)
Divide: 3y3 - 9ay2 - 6ab2y by -3y
Write the coefficient of x2 and x in the following polynomials
`6 - 2x^2 + 3x^3 - sqrt(7)x`
An equation is true for all values of its variables.
The rate of planting the grass is ₹ x per square metre. Find the cost of planting the grass on a triangular lawn whose base is y metres and height is z metres.
