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1. Anna is saving up for a new laptop. She currently has 2x² - 2x dollars saved in her bank account. After working at her part-time job, she is able to deposit another 11x + 15 dollars. She finally has enough money to buy the laptop, and so she withdraws x²- 5x + 3 dollars. How much money does she have left in her bank account after buying her laptop? SHOW ALL WORK!

Respuesta :

1) Gathering the data

Anna currently has 2x² -2x dollars

Then She adds: 11x +15 dollars

And withdraw x²-5x +3 dollars

2) Let's rewrite that

2x² -2x

+11x +15

---------------------

2x² +9x +15 - (x² -5x +3)

2x² +9x +15

-x² +5x -3

---------------------

x² +14x +12

That's the amount of money Anna has left for her laptop: x² +14x +12 dollars