( a - bc ) ( a + b c ) ( a2 + b2c2 ) =
a2 - b2 c2
a4 - b4 c4
a4 - b2 c2
a2 - b4 c4
(3a - 4b ) (3a - 4b ) =
3a2 - 4b2
9a2 - 16 b2
3a2 + 4b2
9a2 + 16 b2
(6 - x ) ( 5 + x ) = ________.
30 + x - x2
30 - x + x2
30 + x + x2
30 + 11 x + x2
The value of 107 x 93 is
9950
9951
9961
9941
(y + 3) ( y - 5 ) =___________.
y2 - 2y -15
y2 + 2y +15
y2 - 2y + 15
y2 + 2y -15
( 3x +2 ) ( 3x - 2 ) =
9x - 4
9x 2 - 4
3x2 - 4
10. 3 x 9.7 =
99.81
99.71
99.91
99.61
( a - 3 ) ( a + 7 ) = _______.
a2 + 10 a + 21
a2 + 10 a - 21
a2 + 4 a + 21
a2 + 4 a - 21
( 2x - 3 ) ( 2x+ 3 ) ( 4x2 + 9 ) =
16x4 - 81
4x2 - 9
16 x4 - 9
4x2 - 81
(x + 2 ) ( x + 3 ) =
x2 + 5x -6
x2 + 6x - 5
x2 + 5x + 6
x2 - 6x + 5
