Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
4x2 – 25y2
Advertisements
उत्तर
We have,
4x2 – 25y2 = (2x)2 – (5y)2
= (2x – 5y)(2x + 5y)
APPEARS IN
संबंधित प्रश्न
The product of (x + 5) and (x – 5) is ____________
(7x + 3)(7x – 4) = 49x2 – 7x – 12
The value of (a + 1)(a – 1)(a2 + 1) is a4 – 1.
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
1331x3y – 11y3x
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
(a – b)2 – (b – c)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
(x + y)4 – (x – y)4
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2 - y^2/100`
Verify the following:
(ab + bc)(ab – bc) + (bc + ca)(bc – ca) + (ca + ab)(ca – ab) = 0
Find the value of `(6.25 xx 6.25 - 1.75 xx 1.75)/(4.5)`
Find the value of `(198 xx 198 - 102 xx 102)/96`
