Question

Решите уравнение
4x^2 - 9 = 0
(1 - 2x)(2x + 1) - 4x(2 - x) = 0

Answer 1

4x^2 - 9 = 0
4x^2 = 9
x^2 = 9/4
x = 3/2
x = - 3/2

(1 - 2x)( 1 + 2x) - 4x( 2 - x) = 0
1 - 4x^2 - 8x + 4x^2 = 0
- 8x = - 1
8x = 1
x = 1/8
x = 0,125