Question

2 la puterea 21 de X + 2 la puterea 22=2 la putere 23


Ajutorrrrrrrr

Answer 1

2²¹x + 2²² = 2²³

2²¹ ( x + 2¹) = 2²³

x + 2 = 2²³ : 2²¹ = 2⁽²³⁻²¹⁾

x + 2 = 2² = 4

x = 4 - 2

x = 2

Answer 2

2²¹x + 2²² = 2²³

2²¹ ( x + 2¹) = 2²³

x + 2 = 2²³ : 2²¹ = 2⁽²³⁻²¹⁾

x + 2 = 2² = 4

x = 4 - 2

x = 2