Virtual Nerd: How Do You Convert a Number in Exponential Form Into Expanded Form

How do you make a penny grow to $5,000 in just 15 days? Use the examples in this lesson to explore the concept of exponential growth and its comparison to linear models. Pupils come to understand that exponential growth eventually...

A quick lesson on how to write an exponential expression in expanded form. All you have to do is write out the base number the identified number of times as represented by the power.

The instructor goes through the steps of how to solve for the value of a variable in a two-step equation. Beware, this problem has a negative variable in the beginning.

You've been given a number written in expanded form. You have to write it in standard form, and in word form. The instructor does a nice job illustrating and explaining just how to do both of these operations.

The instructor demonstrates how to convert a number written in scientific notation to a decimal number. An example is given for a number with a positive exponent, and an example is given for a number with a negative exponent.

The instructor demonstrates how to convert a number written in decimal form to scientific notation. An example is given for a number with a positive exponent and an example is given for a number with a negative exponent.

Factor a binomial using the sum of cubes method. The strategy here is to rewrite each of the expressions in the binomial as a term cubed. That's just two steps. Ok. Wait! There is a formula that is used to finish factoring the binomial....

The instructor first identifies what formula to use to solve this word problem. Then she explains what each of the variables stands for and helps match up their given values in this word problem. There are many components to solving this...

Logarithms can be a little tricky and if you'd like to use a calculator you'll need to use a formula to change the given logarithm into base ten. This tutorial defines the formula, uses it to change a logarithm to base ten, then how to...

So what do you do when you have to solve an equation that has a negative variable? There are a couple of ways to solve this problem. In this video, the instructor first demonstrates how to use the multiplication property of -1 to get rid...