Фото:::::::::::::::::::::::::::
<span>1 - 6 (х - 2) = 14 - 8х
1 - 6x + 12 = 14 - 8x
8x - 6x = 14 - 13
2x = 1
x = 1/2 = 0,5 </span>
(x - 4)(x - 6) = (x + 2)( x + 8)
x² - 10x + 24 = x² + 10x + 16
x² - x² - 10x - 10x = 16 - 24
- 20x = - 8
20x = 8
x = 8/20
x = 2/5
(2x+b)(2x-b)(4x^2+b^2)=
(4x^2 - 2xb + 2xb - b^2) ( 4x^2 + b^2) =
= (4x^2 - b^2 ) ( 4x^2 + b^2) =
= 16x^4 + 4x^2b^2 - 4x^2b^2 - b^4 =
= 16x^4 - b^4