Evaluate ( 9.6 x 10 .4 ) by using the identify ( a + b ) ( a- b ) = a2 – b2
99.80
99.81
99.84
90.84
Find the product of ( x + 2 ) (x + 3 )
( x2 - x + 5 )
(x2 + 5x + 6 )
(x2 - 5x - 6 )
( x2 - 5x + 6 )
(a + b) ( a- b ) =
a2 + b2
a2 - b2
a2 b2
ab2
Evaluate ( 47)2 using the expansion for (a – b) 2
2009
2209
2109
2309
An _____ is an equality which is true for all values of the variables.
Products
Expressions
identity
equation
(x + 2 ) (x - 2 ) = _________.
x2 - 4
x2 + 4
x2 + 2x + 4
x2 - 2x + 4
Find the products : ( 2 + x ) ( 2 - x )
4 - x
2 -x2
4 - x2
2 - x
( a + b )2 = a2 + _________ + b2
a + b
2 ab
2 (a + b)
a b
Evaluate 562 by using the expansion for (a + b ) 2
3030
3136
3026
3126
( x + 1 ) (x + b ) = x2 + ______ x + b.
