Question

16x^2-(4x-1)(4x-3)=15

30 Баллов.

Answer 1

$16 {x}^{2} - (4x - 1)(4x - 3) = 15$

$16 {x}^{2} - 16 {x}^{2} + 12x + 4x - 3 = 15$

$16x = 15 + 3$

$16x = 18$

$x = \frac{18}{16} = 1.125$

Ответ :

$1.125$

Answer 2

Ответ:

x=9/8

Пошаговое объяснение:

16x^2-(4x-1)(4x-3)=15

16x^2-(16x^2-12x-4x+3)=15

16x^2-(16x^2-16x+3)=15

16x^2-16x^2+16x-3=15

16x-3=15

16x=15+3

16x=18

x=9/8