The value of 502 x 498 is
249996
249916
249936
249956
(x + 2 ) ( x + 3 ) =
x2 + 5x -6
x2 + 6x - 5
x2 + 5x + 6
x2 - 6x + 5
(x + 1 ) ( x -1 ) (x2 + 1 ) =
x3 -1
x4 - 1
x2 - 1
x2 + 1
The value of 107 x 93 is
9950
9951
9961
9941
(6 - x ) ( 5 + x ) = ________.
30 + x - x2
30 - x + x2
30 + x + x2
30 + 11 x + x2
(3mn -2 ) (4mn + 1 ) =
12 m2n2 - 5mn - 2
12 m2n2 + 7mn - 2
12 m2n2 - 7mn - 2
12 m2n2 + 5mn - 2
( a - 3 ) ( a + 3 ) ( a2 + 9 ) =
a3 - 9
a4 - 9
a4 - 81
a2 - 81
10. 3 x 9.7 =
99.81
99.71
99.91
99.61
( mn2 + m2 n ) ( mn2 - m2 n ) =
m2n2 + m2 n
mn2 + m2 n2
m2n4 + m2 n2
m2n4 - m4 n2
(3a - 4b ) (3a - 4b ) =
3a2 - 4b2
9a2 - 16 b2
3a2 + 4b2
9a2 + 16 b2
