Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`y^3 - y/9`
Advertisements
उत्तर
We have,
`y^3 - y/9 = y(y^2 - 1/9)`
= `y[y^2 - (1/3)^2]`
= `y(y + 1/3)(y - 1/3)`
APPEARS IN
संबंधित प्रश्न
Factorise the following expressions
m2 + m – 72
(5 + 20)(–20 – 5) = ?
Using suitable identities, evaluate the following.
9.8 × 10.2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
3a2b3 – 27a4b
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(x^3y)/9 - (xy^3)/16`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
a4 – (a – b)4
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
(x + y)4 – (x – y)4
Verify the following:
`((3p)/7 + 7/(6p))^2 - (3/7p + 7/(6p))^2 = 2`
Find the value of `(6.25 xx 6.25 - 1.75 xx 1.75)/(4.5)`
