Advertisements
Advertisements
प्रश्न
(a + b)(a – b) = a2 – b2
पर्याय
True
False
Advertisements
उत्तर
This statement is True.
Explanation:
We know that,
(a + b)(a – b) = a × a – a × b + b × a – b × b
= a2 – b2
= a2 – ab + ba – b2
APPEARS IN
संबंधित प्रश्न
(7x + 3)(7x – 4) = 49x2 – 7x – 12
Factorise: 4x2 – 9y2
The value of p for 512 – 492 = 100p is 2.
Using suitable identities, evaluate the following.
(35.4)2 – (14.6)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
49x2 – 36y2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`1/36a^2b^2 - 16/49b^2c^2`
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).
p5 – 16p
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
9x2 – (3y + z)2
The sum of (x + 5) observations is x4 – 625. Find the mean of the observations.
