Evaluate ( 9.6 x 10 .4 ) by using the identify ( a + b ) ( a- b ) = a2 – b2
99.80
99.81
99.84
90.84
( x + 1 ) (x + b ) = x2 + ______ x + b.
(x + 2 ) (x - 2 ) = _________.
x2 - 4
x2 + 4
x2 + 2x + 4
x2 - 2x + 4
