Advertisements
Advertisements
प्रश्न
Using suitable identities, evaluate the following.
(132)2 – (68)2
Advertisements
उत्तर
We have,
(132)2 – (68)2 = (132 + 68)(132 – 68) ...[Using the identity, a2 – b2 = (a + b)(a – b)]
= 200 × 64
= 12800
APPEARS IN
संबंधित प्रश्न
The difference of the squares, (612 – 512 ) is equal to ______.
Expand: 102 x 98
Factorise the following expressions
m2 + m – 72
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(p + 2)(p – 2)
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(1 + 3b)(3b – 1)
Evaluate the following, using suitable identity
990 × 1010
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
(x + y)4 – (x – y)4
Factorise the expression and divide them as directed:
(x2 – 22x + 117) ÷ (x – 13)
Verify the following:
`((3p)/7 + 7/(6p))^2 - (3/7p + 7/(6p))^2 = 2`
Find the value of a, if 9a = 762 – 672
