1) x^2-14x+49+3=x^2-4
14x=-56
x=-4
б) 5(x^2+4x+4)+4x^2-4x+1=22+9(x^2-9)
5x^2+20x+20+4x^2-4x+1-22-9x^2+81=0
16x=-80
x=5
1) x^2-14x+49+3=x^2-4
14x=-56
x=-4
б) 5(x^2+4x+4)+4x^2-4x+1=22+9(x^2-9)
5x^2+20x+20+4x^2-4x+1-22-9x^2+81=0
16x=-80
x=5