Răspuns:
b) 625-x= 576
x= 625- 576
x= 49
x=7 la puterea 2
a) x la puterea 2÷2 la puterea 2= 3 la puterea 2
x la puterea 2 ÷4= 9
x la puterea 2= 9×4
x la puterea 2= 36
x= 6 la puterea 2
c) x ÷ 10 la puterea 3= 10 la puterea 0
x÷ 1000= 1
x= 1000×1
x = 1000 ( sau cu 10 la puterea 3)
d) 441 ÷x= 21 la puterea 2
441÷x= 441
x= 1
e) x- 2 la puterea 5 = 5 la puterea 3
x- 32 = 125
x = 125 +32
x = 157
f)
