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) = ?
Factorise: 4x2 – 9y2
Using suitable identities, evaluate the following.
(9.7)2 – (0.3)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
25ax2 – 25a
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(2p^2)/25 - 32q^2`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
p5 – 16p
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
9x2 – (3y + z)2
Factorise the expression and divide them as directed:
(x3 + x2 – 132x) ÷ x(x – 11)
Verify the following:
(ab + bc)(ab – bc) + (bc + ca)(bc – ca) + (ca + ab)(ca – ab) = 0
