The square of 4 - 3x is
16 - 9x2
16 - 12x + 9x2
16 - 24x + 9x2
16 + 24 x + 9x2
( a + 1 ) 2 =
a2 + 2a + 1
a2 + a + 1
a2 + 1
a2 + 2a + 2
The value of ( 999 ) 2 is
998001
998011
998021
998031
If a + 1/a = 4, Find the value of a2 + 1/a2.
10
12
13
14
If a + b = 6 and a2 + b2 = 20. Find the value of ab.
6
8
9
Express 9a2 + 60 a + 100 as a perfect square.
( 3a + 10 ) 2
( 3 + 10a ) 2
( 3a - 10 ) 2
( 10a + 3 ) 2
The square of ( ab + cd ) is
ab + 2ab + cd
a2 b2 + 2abcd + c2d2
a2 b2 + 2abc + c2d2
a2 b2 + abcd + c2d2
( x + 2y ) 2 =
x2 + 2xy + 4y 2
x2 + 4xy + 4y 2
x2 + 4y 2
x2 + 4xy
(a2 - b2 ) 2 =
a2 - 2ab + b2
a4 - 2ab + b4
a4 - 2a2b2 + b4
a4 + 2a2b2 + b4
Express 81 x2 + 90 xy + 25 y2 as a perfect square
( 5x + 9y ) 2
( 5x - 9y ) 2
( 9x + 5y ) 2
( - 9x + 5y ) 2
