( a - 3 ) ( a + 3 ) ( a2 + 9 ) =
a3 - 9
a4 - 9
a4 - 81
a2 - 81
( a - 3 ) ( a + 7 ) = _______.
a2 + 10 a + 21
a2 + 10 a - 21
a2 + 4 a + 21
a2 + 4 a - 21
( x + 6 ) ( x - 6 ) =
x2 + 12 x + 36
x2 + 12 x - 36
x2 - 36
x2 + 36
(5x + 2y ) (2x - 5y ) = __________.
10X2 - 21 XY + 10 Y2
10X2 - 21 XY - 10 Y2
10X2 + 21 XY + 10 Y2
None of these
(6 - x ) ( 5 + x ) = ________.
30 + x - x2
30 - x + x2
30 + x + x2
30 + 11 x + x2
( m + 1/3 ) ( m - 1/3 ) =
m2 + 2/3 m - 1/9
m2 + 1/9
m2 - 1/9
m2 + 1/3 m - 1/9
(x + 2 ) ( x + 3 ) =
x2 + 5x -6
x2 + 6x - 5
x2 + 5x + 6
x2 - 6x + 5
( x +1 ) ( x - 1 ) = ______.
x2 + 2 x + 1
x2 - 1
x2 + 1
x2 + x + 1
10. 3 x 9.7 =
99.81
99.71
99.91
99.61
The value of 107 x 93 is
9950
9951
9961
9941
