Express x2 + x + 1/4 as a perfect square :
( x + 1/2 ) 2
( 2x + 1 ) 2
( x + 2 ) 2
( x - 1/2 ) 2
(a2 - b2 ) 2 =
a2 - 2ab + b2
a4 - 2ab + b4
a4 - 2a2b2 + b4
a4 + 2a2b2 + b4
( x + 2y ) 2 =
x2 + 2xy + 4y 2
x2 + 4xy + 4y 2
x2 + 4y 2
x2 + 4xy
If a + 1/a = 4, Find the value of a2 + 1/a2.
10
12
13
14
The value of ( 103 ) 2 is
10609
10619
10629
10639
If a + b = 6 and a2 + b2 = 20. Find the value of ab.
6
8
9
If a2 + 1/a2 = 14, find the value of a4 + 1/a4
192
194
196
198
The value of ( 999 ) 2 is
998001
998011
998021
998031
Express 1 - 2y + y 2 as a perfect square
( 1 + y ) 2
( -1 + y ) 2
( 1 - y ) 2
None of these
Express 9m2 - 6m + 1 as a perfect square.
( 1 - 3m ) 2
( 1 + 3m ) 2
( 3 - m ) 2
( 3 m - 1 ) 2
