\(\left(20.2^4+11.2^4-23.2^4\right):2^6\)
\(=\left[2^4.\left(20+11-23\right)\right]:2^6\)
\(=\left(2^4.8\right):2^6\)
\(=2^4.2^3:2^6\)
\(=2\)
\(\left(20.2^4+11.2^4-32.2^4\right):6=\left[2^4\left(20+11-32\right)\right]:6=\)
\(=\left[2^4.1\right]:2^6=2^2\)
\(=\left(5\cdot2^6+11\cdot2^4-23\cdot2^4\right):2^6=5+11\cdot\dfrac{1}{2^2}-23\cdot\dfrac{1}{2^2}=5+\dfrac{11}{4}-\dfrac{23}{4}=2\)
= ( 20 . 16 + 11 . 16 - 23 . 16) : 64
= [ 16( 20 + 11 - 23 ) ] : 64
= [ 16 . 8 ] : 64
= 128 : 64
= 2
