Question

(7-9)²+(5-7)³+(7-7) elevado a 4 = ?

Answer 1

$(7-9)^{2} + (5-7)^3-(7-7)^4\\ (-2)^2+(-2)^3-(0)^4\\ 4+(-8)\\ 4-8 = -4$

Answer 2

(7-9)=-2x-2=+4
(5-7)=-2x-2x-2=-8
(7-7)=0

resposta: -4 elevado a 4