Explicație pas cu pas:
4. a) (7-3)³= 4³=48
b) (2+3)²=5²=25
c) 12²-5²=144-25=119
d)40²+30²=1600+900=2500
e)50²-30²=2500-900=1600
f)5²+2×5×3+3²=25+10×3+9=55+9=64
g)5²-3²+4²=25-9+16=0
6. a)2¹⁷×2²¹=2³⁸
b)3⁴⁵×3⁸⁷×3⁵⁵=3¹⁸⁷
c)7¹⁹×7⁸³×7=7¹⁰³
d)2⁴⁷:2³⁹=2⁸
e)5¹⁰⁸:5⁷²=5³⁶
f)2³⁷×2⁴⁷:2⁵⁰=2⁸⁴:2⁵⁰=2³⁴
g)(10¹²)¹⁵=10¹⁸⁰
h)(2¹⁷)⁸×2³¹=2¹³⁶+2³¹=2¹⁶⁷
i)3¹⁰⁰:(3¹⁵)⁶=3¹⁰⁰:3⁹⁰=3¹⁰
j)(3⁷×5¹²)²=(15¹⁴)²=15²⁸
k)(2¹⁰×3⁷)⁹:(2⁵×3⁶)¹⁰=(2⁵×3¹)¹=32×3=96
Sper că te-am ajutat!! Spor la treabă
