Advertisements
Advertisements
प्रश्न
(a + b)(a – b) = a2 – b2
विकल्प
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
Factorise : 16p4 – 1
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(4 – mn)(mn + 4)
Factorise: 4x2 – 9y2
Simplify (5x – 3y)2 – (5x + 3y)2
Using suitable identities, evaluate the following.
(729)2 – (271)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).
8a3 – 2a
Factorise the expression and divide them as directed:
(3x2 – 48) ÷ (x – 4)
The sum of (x + 5) observations is x4 – 625. Find the mean of the observations.
Verify the following:
`((3p)/7 + 7/(6p))^2 - (3/7p + 7/(6p))^2 = 2`
