Question

(х^2+5)^2=144 пж срочно

Answer 1

(x²+5)²-144=0

(x²+5)²-12²=0

(x²+5-12)*(x²+5+12)=0

(x²-7)(x²+17)=0

x²≠-17

x²=7

x1= √7,  x2= -√7