Question

Найдите корни уравнения 16-100x^2=0

Answer 1

16 - 100x^2 = 0 
4^2 - (10x)^2 = 0 
(4 - 10x)(4 + 10x) = 0 

1) 4 - 10x = 0 
- 10x = - 4
10x = 4
x = 4/10 = 2/5 = 0,4

2) 4 + 10x = 0 
10x = - 4
x = - 0,4