1)x^2+2*6x+36-16=0
x^2+12x+6^2=4^2
(x+6)^2=4^2
x+6=4 => x1=-2
x+6=-4 => x2=-10
1)x^2-2*1.5x+2.25 - 0.25=0
x^2-3x+2.25=0.25
x-1.5=0.5=> x1=2
x-1.5=-0.5=> x2=1
1)x^2+2*6x+36-16=0
x^2+12x+6^2=4^2
(x+6)^2=4^2
x+6=4 => x1=-2
x+6=-4 => x2=-10
1)x^2-2*1.5x+2.25 - 0.25=0
x^2-3x+2.25=0.25
x-1.5=0.5=> x1=2
x-1.5=-0.5=> x2=1