Advertisements
Advertisements
Question
Choose the right answers from the option:
The difference of the squares, (612 – 512 ) is equal to ______.
Options
1120
1230
1240
1250
Advertisements
Solution
(612 – 512)
= (61 - 51)(61 51) ....(∵ (a2 - b2) = (a + b)(a - b))
= 10 × 112
= 1120
APPEARS IN
RELATED QUESTIONS
Factorise : 16p4 – 1
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
(6x + 7y)(6x – 7y)
Using suitable identities, evaluate the following.
(339)2 – (161)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
28ay2 – 175ax2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2/8 - y^2/18`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
16x4 – 81
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4
Factorise the expression and divide them as directed:
(3x4 – 1875) ÷ (3x2 – 75)
Find the value of a, if 8a = 352 – 272
