Question

VA ROG AJUTATI MA DAU COROANA1❗❗❗❗❗​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

4/10 = 2/5

(2/5)^2x*(2/5)^3 = (2/5)^7

(2/5)^2x+3 = (2/5)^7

2x + 3 = 7

2x = 7 - 3 = 4

x = 4 : 2 = 2

b)

25/10 = 5/2

(5/2)^3x*(5/2)^4 = (5/2)^10

(5/2)^3x+4 = (5/2)^10

3x + 4 = 10

3x = 10 - 4 = 6

x = 6 : 3 = 2