1)x(3x)=0
x=0
2)x^2=144
x=12
или
x=-12
3)6(x^2-100)=0
x^2-100=0
x^2=100
x=10
x=-10
4)3(x^2-121)=0
x^2-121=0
x^2=121
x=11
x=-11
5)3(x^2+4)=0
x^2+4=0
x∉R
6)8x^2=9
x=9/8
x=-9/8
7)x^2-16=0
x^2=16
x=4
x=-4
8)x∉R
9)x^2=49
x=7
x=-7
10)x^2=27
1)x(3x)=0
x=0
2)x^2=144
x=12
или
x=-12
3)6(x^2-100)=0
x^2-100=0
x^2=100
x=10
или
x=-10
4)3(x^2-121)=0
x^2-121=0
x^2=121
x=11
или
x=-11
5)3(x^2+4)=0
x^2+4=0
x∉R
6)8x^2=9
x=9/8
или
x=-9/8
7)x^2-16=0
x^2=16
x=4
или
x=-4
8)x∉R
9)x^2=49
x=7
или
x=-7
10)x^2=27