Question

Am 4 calcule,dau 20 de puncte.
(16 x 12 la puterea 10 - 4 x 12 la puterea 10 ) : 12 la puterea 11


b) 15 la puterea 2 - (14 x 15+15) : 15 la puterea 2


c) 10 la puterea 3 x 85 - 10 la puterea 3 x 61-3000



d) 5 la puterea 11 - ( 6 x 5 la puterea 10 - 2 x 5 la puterea 10 )

Answer 1

$(16* 12^{10} -4*12^{10}):12^{11}=12^{10}*(16-4):12^{11}=12^{10}*12:12^{11}=$
$12^{10+1-11}=1$
$15^{2} -(14*15+15):15^{2}=15^{2}-15*(14+1):15^{2}=15^{2}-1$
$10^{3} *85-10^{3}*61-3000=10^{3}*(85-61-3)=10^{3}*21=21000$
$5^{11} -(6* 5^{10} -2*5^{10})=5^{11}-5^{10}*(6-2)=5*5^{10}-4*5^{10}=5^{10}$