Question

Решите уравнение 144x²-1=0

Answer 1

144х²-1=0
(12х-1)(12х+1)=0
12х-1=0             12х+1=0
х₁=1/12                 х=-1/12

Answer 2

144x^2 = 1 
x^2 = 1/144
x₁ = - √(1/144) = - 1/12;
x₂ = √(1/144) = 1/12;