Pls na jutro plslss nie umiem tego a jeszcze kartkówka pls pomusicie

[tex]zad.c\\\\(-2\dfrac{1}{3} )^{3} =(-\dfrac{7}{3} )^{3} =(-\dfrac{7}{3} )\cdot (-\dfrac{7}{3} )\cdot (-\dfrac{7}{3} )=-\dfrac{343}{27} =-12\dfrac{19}{27}\\\\zad.d\\\\\dfrac{2^{7} \cdot 2^{7} }{2^{7} +2^{7} } =\dfrac{2^{7+7} }{2^{7} (1+1)} =\dfrac{2^{14} }{2^{7} \cdot 2} =\dfrac{2^{14} }{2^{7} \cdot 2^{1} } =\dfrac{2^{14} }{2^{7+1}} =\dfrac{2^{14} }{2^{8}} =2^{14-8} =2^{6} =2\cdot 2\cdot 2\cdot2\cdot 2\cdot 2=64[/tex]