Question

решите уравнение (x+6)^2=(x-4)(x+4)-8

Answer 1

(х+6)^2=(x-4)^2-8

x^2+12x+36=x^2-8x+16-8

12x+36=8-8x

20x+28=0

20x=28

x=14/10

x=1,4