Question

Решите уравнение (2x+3)(4x-1)-8x во второй степени =12

Answer 1

$(2x + 3)(4x - 1) - 8 {x}^{2} = 12$
$8{x}^{2} - 2x + 12x - 3 - 8 {x}^{2} = 12$
$10x - 3 = 12$
$10x = 12 + 3$
$10x = 15$
$x = frac{15}{10}$
$x = 1,5$
Ответ: 1,5