Question

find the value of ( minus 20 minus 20)[ minus 20 minus[ minus 20 minus ( minus 20 minus 20)]​

Answer 1

Explanation:

$( - 20 - 20)( - 20 - ( - 20 - ( - 20 - 20))) \\ = (- 40)( - 20 - ( - 20 - ( - 40))) \\ = ( - 40)( - 20 - ( - 20 + 40)) \\ = ( - 40)( - 20 - ( + 20)) \\ = ( - 40)( - 20 - 20) \\ = (- 40) \times ( - 40) \\ = 1600$

Answer 2

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