Question

aflati x din egalitatea : 2^1988/x= 4^993/0,25

Answer 1

2¹⁹⁸⁸/x = 4⁹⁹³/0,25
2¹⁹⁸⁸/x = (2²)⁹⁹³/0,25
2¹⁹⁸⁸/x = 2¹⁹⁸⁶/0,25
x=0,25×2¹⁹⁸⁸/2¹⁹⁸⁶
x=0,25×2²
x=0,25×4
x=1

Answer 2

2¹⁹⁸⁸/x = 4⁹⁹³/0,25


2¹⁹⁸⁸/x = 2¹⁹⁸⁶/0,25

x = 0,25·2¹⁹⁸⁸/2¹⁹⁸⁶

x = 1/4·2²

x = 1/4·4

x = 4/4

x = 1