Unknown Story

Good morning Ms.Abby
Good morning class! How are you all today? Let's start right away! I have a lot of work planned for today. Today we will be covering the difference of two squares.
Good Morning
(5x - 3)(5x +3)
10x - 6
5x² - 9
25x² - 9
Ms.Abby is on her way to school. She will teach the 8th graders in the first two periods. Today she has planned to cover the topic: difference of two squares.
Ms. Abby! I know the answer it is 25x² - 9. May I explain to the class how to solve it?
Hmm
When she arrived in school she greeted the class and started with the planned work right away.
(5x-3)x(5x+3)(5x)^2 - 3^225x^2 - 3^325x^2 - 9
First simplify the product using (a-b)(a+b)=a^2 - b^2.To raise the product to the power, raise each individual factor to the power of the exponent. Lastly calculate the power. This gives you the answer.
with a piece of chalk she writes the problem on the board. Underneath she puts three possible answers only one Is right though. The students are now allowed to guess.Answer is 25x² - 9
Great job! Im am very impressed Tommy! Please take a seat again.
The class was very confused. Except for Tommy. He immediately stood up and announced that he knew the answer. After Ms.Abby allowed him to explain to the class he starts.
He writes out the steps he did on the board and explained the steps he proceeded to reach those individual steps.
Ms. Abby is very happy and impressed that Tommy did such a good job. He nicely asked him to take a seat so the lesson can be led on.

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