Question

[Trần Lê Thanh Dung]

Tìm x :

a) 2x - 5² = 33

b) 5. ( x + 35 ) = 515

c) 4^x+1 = 64

d) 3 222 - ( x -235 ) = 2357

Answer 1

[ILoveMath]

\(a,\Rightarrow2x-25=33\\ \Rightarrow2x=58\\ \Rightarrow x=29\\ b,\Rightarrow x+35=103\\ \Rightarrow x=68\\ c,\Rightarrow4^{x+1}=4^3\\ \Rightarrow x+1=3\\ \Rightarrow x=2\\ d,\Rightarrow x-235=865\\ \Rightarrow x=1100\)

Answer 2

[Trần Lê Thanh Dung]

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