a, x3 + 3x = 12.11
<=> x . ( 3 + 3 ) = 132
<=> x . 6 = 132
<=> x = 132 : 6
<=> x = 22
b, x04 + 40x = 101.11
<=> x . ( 4 + 40 ) = 1111
<=> x . 44 = 1111
<=> x = 1111 : 44
<=> x = 25,25
a) x3+3x=12.11
3x+3x=132
6x=132
x=132:6
x=22
b)x04+40x=101.11
4x+40x=1111
44x=1111
x=1111:44
x=25.25
x3+3x=12.11 x4+40x=101.11
x.3+3.x=132 x.4+40.x=1111
x.(3+3)=132 x.(4+40)=1111
x.6=132 x.44 =1111
x =132:6 x =1111:44
x=22 x =25.25