1.3
Algebraic expressions
Polynomials
EXAMPLES Multiply and simplify.
1.
(2x + 3)(x − 7)
2.
(x − 3)3
3.
( x − 5)( x + 5)
4.
x 3/2 ( x −
1
)
x
EXAMPLES Factor the expression completely.
1.
5x 2 − 7x − 6
2.
4x 2 − 9
3.
−9x 3 − 3x 2 + 6x + 2
4.
30x 3 + 15x 4
5.
x 2 − 6xy + 9y 2