Question

1) 2^2-x=4
2) 8=4^1/2x+1
3) (12/17)^x/2 +1 =(5/20)^x/2 +1
4) 2^2-x-2^2x-1=1

Answer 1

$2 {}^{2 - x} = 2 {}^{2} \ 2 - x = 2 \ - x = 2 - 2 \ - x = 0 \ x = 0$


$2 {}^{3} = 2 {}^{ frac{2}{2x + 1} } \ 3 = frac{2}{2x + 1} \ 3(2x + 1) = 2 \ 6x + 3 = 2 \ 6x = - 1 \ x = - frac{1}{6}$
$(2 - 1) times 2 {}^{2x - 1} = 1 \ 1 times 2 {}^{2x - 1} = 1 \ 2 {}^{2x - 1} = 1 \ 2 {}^{2x - 1} = 2 {}^{0} \ 2x - 1 = 0 \ 2x = 1 \ x = frac{1}{2}$



$( frac{12}{17} ) {}^{ frac{x}{2} + 1 } = ( frac{1}{4}) {}^{ frac{x}{2} + 1 } \ ( frac{ frac{12}{17} }{ frac{1}{4} } ) {}^{ frac{x}{2} + 1} = 1 \ ( frac{48}{17}) {}^{ frac{x}{2} + 1 } = ( frac{48}{17} ) {}^{0} \ frac{x}{2} + 1 = 0 \ x + 2 = 0 \ x = - 2$

Answer 2

А что за Tex times и тд

Answer 3

у меня нет такого. просто решение