Jornal Entry1:like terms

A like term is when the two variables are the same.For example 100p and 300p are like terms because they both have p in them and you can combine the weather you add them or subtract them.For example p and p^ 2 we can not combine them.2d+2f are not like terms because they do not have the same variable so 2d+2f will equal 2d+2f.An expression cannot have an equal sign because it will become an equation.A perimeter is when you add all the side of a shape to figure out what its sum.