Question

Va rog repede dau coroana și multe puncteeeeee ‼️‼️‼️​

Answer 1

4. (3²¹+3²⁰+3¹⁹)÷39 = 3¹⁸(3³+3²+3)÷39 = 3¹⁸(27+9+3) ÷ 39 = 3¹⁸×39÷39 = 3¹⁸ = (3⁹)²

5. p=3⁷¹×4⁶²

U(3⁷¹)=7

U(4⁶²)=6

U(3⁷¹)×U(4⁶²)=7×6=42, U(42)=2

6. 7^x+7^x+2=2450

7^x+7^x×49=2450

7^x(1+49)=2450

7^x×50=2450

7^x=49

7^x=7² => x=2