Question

42. Si se afle mumărul natural
27
b) 2-42-
4. Vă fau corpana.e urgent​

Answer 1

a)3^x×3^(x+1)=27³

3^(2x+1)=3⁹

2x+1=9

2x=9-1

2x=8

x=4

b)(2^x)²×4^(x-2)=8⁴

2^2x2^(2x-4)=2¹²

2^(4x-4)=2¹²

4x-4=12

4x=12+4

4x=16

x=4

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