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4. Calculează: [(4⁴)¹⁷:4²⁶ –56]:5.​

Răspuns :

[(4*4)*17:4*2*6-56]:5=
=(16*17:4*2*2-56):5=
=(272:4*2*6-56):5=
=(68*2*6-56):5=
=(136*6-56):5=
=(816-56):5=
=760:5=
=152