Question

1. 5^2+x = 125^x
1. корень из 37+7х = 4

Answer 1

1)
5^(2x) =(5³)^x;
5^(2+x) =5^(3x);
2+x= 3x ;
x=1.
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2)
√(37+7x) =4;
37 +7x =4² ;
37+7x = 16  ;
7x = 16 -37;
7x = -21;
x=  (-21) :7 ;
x= - 3 .