Advertisements
Advertisements
Question
Evaluate the following, using suitable identity
512
Sum
Advertisements
Solution
512 = (50 + 1)2
Taking a = 50 and b = 1 we get
(a + b)2 = a2 + 2ab + b2
(50 + 1)2 = 502 + 2(50)(1) + 12
= 2500 + 100 + 1
512 = 2601
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Use a suitable identity to get the following products.
(6x − 7) (6x + 7)
Simplify (4m + 5n)2 + (5m + 4n)2
Using identities, evaluate 992
`(("a" + "b")("a"^3 - "b"^3))/(("a"^2 - "b"^2))` = ___________
Factorise the following expressions
x2 + 14x + 49
Simplify: (a + b)2 + (a – b)2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 2x + 1
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abx + b2
Verify the following:
(7p – 13q)2 + 364pq = (7p + 13q)2
Factorise p4 + q4 + p2q2.
