Question

189(2,4,6) заранее спасибо))))помогите дз

Answer 1

2) x^2=16; x^2=4
x=4; x=-4; x=2; x=-2
4)(x^2-10)^2=0
x^2-10=0
x^2=10
x=5; x=-5
6)x^2=5; x^2=3;
x=2.5;x=-2.5; x=1.5; x=-1.5