Advertisements
Advertisements
Question
Multiply the following:
(a2 – b2), (a2 + b2)
Advertisements
Solution
We have,
(a2 – b2) and (a2 + b2)
∴ (a2 – b2)(a2 + b2) = a2(a2 + b2) – b2(a2 + b2)
= a4 + a2b2 – b2a2 – b4
= a4 – b4
APPEARS IN
RELATED QUESTIONS
Simplify using identities
(3p + q)(3p – q)
If X = a2 – 1 and Y = 1 – b2, then find X + Y and factorize the same
672 – 372 = (67 – 37) × ______ = ______.
Using suitable identities, evaluate the following.
(9.7)2 – (0.3)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(4x^2)/9 - (9y^2)/16`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
p5 – 16p
Factorise the expression and divide them as directed:
(9x2 – 4) ÷ (3x + 2)
Verify the following:
(a2 – b2)(a2 + b2) + (b2 – c2)(b2 + c2) + (c2 – a2) + (c2 + a2) = 0
Verify the following:
`((3p)/7 + 7/(6p))^2 - (3/7p + 7/(6p))^2 = 2`
Find the value of a, if 8a = 352 – 272
