ln( 7 x+3 ) + 9 ln(2) = 9 ln (14)
(x+3) * ln(7) = 9 * ln(14 ) - 9 ln ( 2 ) = 9 * ( ln (14 ) - ln (2 ) ) = 9 * ln(7)
x + 3 = 9
x = 6
2 x-0,25 = √ ( e x*x )
2 x-0,25 = e x*x / 2 ( x-0,25 ) * ln(2) = x2 / 2
2ln(2) * ( x- 0,25 ) = x2
0 = x2 + 2ln(2) * x - ln(2) / 2
mit pq- Formel x = - ln(2) ±√ ( ln(2)2 + ln(2)/2 )
x = 0,22 oder x = -1,6