Algebra Review

x and Y

500

The solution of an equation with two variables, x and y, is?

the set of all y values that make x=0.

Expressions

500

The expression x⁴ - 16 is equivalent to:

1) (x²+8)(x²-8)       3) (x²+4)(x²-4)

2) (x²-8)(x²-8)        4) (x²-4)(x²-4)

3)