hmagnus707 hmagnus707

15-06-2017
Mathematics

contestada

Please show me how to solve the following problem
(-1) ^{2} [-7 ^{2}-(-2) ^{2} ]

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mreijepatmat mreijepatmat

15-06-2017

I will rewrite it (if it's different from your original problem, please let me know:

(-1)²[ -7² - (-2)²] (note that -7² ≠ (-7)². I used the 1st one.

1[-49 +4] = -45

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