Advertisements
Advertisements
प्रश्न
Multiply the following:
(a2 – b2), (a2 + b2)
Advertisements
उत्तर
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
संबंधित प्रश्न
Evaluate the following, using suitable identity
990 × 1010
Find the value of (x – y)(x + y)(x2 + y2)
a2 – b2 = (a + b) ______.
Using suitable identities, evaluate the following.
(132)2 – (68)2
Using suitable identities, evaluate the following.
(729)2 – (271)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
4x2 – 49y2
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)
Verify the following:
(ab + bc)(ab – bc) + (bc + ca)(bc – ca) + (ca + ab)(ca – ab) = 0
Verify the following:
`((3p)/7 + 7/(6p))^2 - (3/7p + 7/(6p))^2 = 2`
