George Washington was the first American president.
Вроде так
4(х-16)=48
4х-64=48
4х=64+48
4х=112
х=28
1/6(24-х)=48
4-1/6х=48
-1/6х=-4+48
-1,6х=44
х=-27,5
(x-3)^2=25
x^2-6x+9=25
x^2-6x-16=0
D=6*6-4*(-16)=100
x1=6+10/2=8
x2=6-10/2=-2
Ответ: x1=8
<span>x2=-2</span>