Question

Ayudaaa porfaa
A= (-1)¹² + (-3)² - (-7)²​

Answer 1

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$(-1)^{12} + (-3)^{2} - (-7)^{2} ​ \\\\(-1)^{12} : 1\\\\1 + (-3)^{2} - (-7)^{2}\\\\(-3)^{2} : 3x3 = 9\\\\1+9- (-7)^{2} \\\\(-7)^{2} : 7x7 = 49\\\\1+9-49\\\\-39$

→Por lo tanto la respuesta  es -39