\(\left(20.2^4-12.2^3-48.2^2\right)^2:\left(-8^3\right)\)
\(=\left(20.16-12.8-48.4\right)^2:\left(-512\right)\)
\(=\left(320-96-192\right)^2:\left(-512\right)\)
\(=\left(224-192\right)^2:\left(-512\right)\)
\(=32^2:\left(-512\right)\)
\(=\left(32^2:-512\right)\)
\(=\left(1024:-512\right)\)
\(=-2\)
=-2 (âm hai)
mình nghĩ là nó đúng
k mình nha