Thursday, October 30, 2008

Journal Entry 3 : Intergal exponents

We cannot simplify expressions that do no contain like terms. x^2y and xy^2 are not like terms because x^2y means x to the second power multiply by y and xy^2 means x multiply by y to the second power so x and y are in being squared in both of the expression but in different places. xy is not the same as xyz because the expression xy is not being multiply by z, so we cannot combine. The power of m^7 is m multiplying itself seven times . 7 is the power and m is the base. If x was the base, then the negative base is -x. A real life scenario involving exponents is in science. In science, when doing experiments, we use exponents for formulas.

No comments:

Post a Comment