Question

5^2x-3 -2.5² = 5².3]

ai lam dc giai chi tiet mik cho 5 tick nha !

cac ban giup mik vs !

Answer 1

5^2x-3-2.5²=5².3

5^2x-3=2.5²+5².3

5^2x-3=125

5^2x-3=5³

=>2x-3=3

2x=3+3

2x=6

x=6:2

x=3

CHÚC BN HOK TỐT!

Answer 2

Thanks

Answer 3

5^2x-3=5^2.3+-5^2.2

5^2x-3=5^2*5

5^2*x-3=5^3

2*x-3=3

2*x=3+3

2*x=6

x=6:2

x=3

t i c k cho minh nha

Answer 4

ok

 \(5^{2x-3}\) - 50 = 75

 \(5^{2x-3}\)= 125 = \(5^3\)

=> 2x - 3 = 3

=> 2x = 3 + 3 = 6

=> x = 6 : 2

vậy x = 3

k đi