Ch8

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To combine twoor more numbers with exponents, you can add the exponents together to get your answer, this is not mathmatically correct way of saying this, but it is essentially what you will be doing. If you have (x 2 )(x﻿ 3 ) it would be x 5. When raising a power by a power, always multiply. When dividing like bases (same variables), subtract exponents. x 3 /x 6 is x -3. This is because when you divide exponents, you just subtract them as a shortcut. x 2 y 4 z 3 - x 4 y 2 z
 * Exponents and Exponential Functions **
 * Exponent Properties involving Products **
 * You might want to remember that anything to the 0 power is 1.**
 * Negative Exponents **
 * Negative Exponents **

x -2 y 2 z 2 is t ﻿ he answer.

// Scientific Notation is where you move the decimal in a decent spot and multiply that by 10 to whatever power. You get that power by how many places you moved the decimal. To the left is positive, the right is negative. // Ex. 298,000,000 In Scientific Notation, it would look like this: 2.98x10 8 We get 10 to the 8th power by moving the decimal place over to the left 8 times. We could have also moved it to the right and have gotten a negative number, but that would defeat the purpose of scientific notation and would just be silly. Don't do that. Lets say we have 0.00000763 We move the decimal place over 6 places. Our answer is then 7.63x10﻿﻿ -6 (5x10 6 )(3x10 -4 ) We move the 3 and 5 together. (5x3)(10 6 x 10 -4 ) We are then left with 15x10 2 Simplify. 1.5x10 ﻿3.
 * Scientific Notation **
 * You can use the associative property with scientific notation.**

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