Корень из（11х + 14）=х+4

Question

Корень из（11х + 14）=х+4

Answer 1

V ( 11x + 14 ) = X + 4
( V ( 11x + 14 ))^2 = ( X + 4 )^2
11x + 14 >= 0 ; 11x >= - 14 ; X >= - 1 ( 3/11 )
11x + 14 = x^2 + 8x + 16
X^2 - 3x + 2 = 0
D = 9 - 8 = 1 = 1^2
X1 = ( 3 + 1 ) : 2 = 2
X2 = ( 3 - 1 ) : 2 = 1 ( < 1 ( 3/11 ))
Ответ 2