By using distributive property you can distribute (XYZ)4 and get a simplified answer of 4(x)+ 4(y) + 4 (z). The parenthesis show that 4(xyz) is not simplified and could also be written as 4(x)+ 4(y) + 4 (z).
21/4 is equivalent to...
4 x 5 = 20
so, 21/4 = 5 1/4
5 1/4 = 5.25
5 1/4 = 5 2/8 = 42/8
42/8 = 84/16
In order to invert a function, switch y and x in the definition, and solve for y again:
Solving for y, we have
Whole numbers greater than zero are called positive integers<span>. Whole numbers less than zero are called </span>negative integers<span>. The </span>integer<span> zero is neither </span>positive<span> nor </span>negative<span>, and has no sign. Two </span>integers<span> are opposites if they are each the same distance away from zero, but on opposite sides of the number line.
ex. -10+-2 would be a negative integer you just add them and keep the sign
Hopes this helps if you have more question just hmu and ask :)</span>
