Mathematics, 21.11.2020 16:00 liah9465
4) Use the difference of two squares method to evaluate 120squared - 119 squared
Answers: 2
![120^2-119^2\\=(120+119)(120-119)\ [a^2-b^2=(a+b)(a-b)]\\=239](/tpl/images/0921/1475/7430c.png)
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4) Use the difference of two squares method to evaluate 120squared - 119 squared...
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