If a + b = 6 and a2 + b2 = 20. Find the value of ab.
6
8
9
10
If a + b = 5 and ab = 6, Find the value of a2 + b2
11
12
13
( a + 1 ) 2 =
a2 + 2a + 1
a2 + a + 1
a2 + 1
a2 + 2a + 2
Express 9a2 + 60 a + 100 as a perfect square.
( 3a + 10 ) 2
( 3 + 10a ) 2
( 3a - 10 ) 2
( 10a + 3 ) 2
The value of ( 999 ) 2 is
998001
998011
998021
998031
If a - b = 5 and a2 + b2 = 37 Find the value of a b ?
7
The square of 4 - 3x is
16 - 9x2
16 - 12x + 9x2
16 - 24x + 9x2
16 + 24 x + 9x2
(a - b ) 2 =
a2 + b2
a2 - b2
a2 + 2ab + b2
a2 - 2ab + b2
(a + b ) 2 =
A2 + b2
Express x2 + x + 1/4 as a perfect square :
( x + 1/2 ) 2
( 2x + 1 ) 2
( x + 2 ) 2
( x - 1/2 ) 2
