Răspuns:
R
Explicație pas cu pas:
1.a)2³+4⁰-3²=8+1-9=0
b)(8²+15²):17²=(64+225):289=289/289=1
c)(2×2⁵×2¹⁵):2¹⁸=2²¹:2¹⁸=2³=8
d)(3⁷)⁸:3⁵⁴=3⁵⁶:3⁵⁴=3²=9
2.a)50-40:[11-(256+44):100]=
50-40:(11-300:100)=50-40:(11-3)=
50-40:8=50-5=45
b)3×16+{7×[6-(4+2×3):5]-8}:10=
48+[7×(6-10:5):10=48+[7×(6-2):10=
48+28:10=48+2,8=50,8
