$-2^6-2^\{6\}$

$-2^4\cdot (-2{)}^2-2^\{4\}\backslash cdot(-2)^\{2\}$

${(-2)}^2\cdot 2^4\backslash left(-2\backslash right)^\{2\}\backslash cdot2^\{4\}$

${(-2)}^3\cdot {(-2)}^2\cdot (-2)\backslash left(-2\backslash right)^\{3\}\backslash cdot\backslash left(-2\backslash right)^\{2\}\backslash cdot\backslash left(-2\backslash right)$