<h3>4/х = х + 3 </h3><h3>ОДЗ: х ≠ 0</h3><h3>х•( х + 3 ) = 4</h3><h3>х² + 3х - 4 = 0</h3><h3>D = 3² - 4•(-4) = 9 + 16 = 25 = 5²</h3><h3>x₁ = - 4</h3><h3>x₂ = 1</h3><h3><em><u>ОТВЕТ: - 4 ; 1</u></em></h3>
А)6х^2+3х-6х^2+х=10 ;4х=10 ;х=2,5
1) ( X - 1)^2 = X^2 - 2X + 1
2) 4 * ( X^2 - 2X + 1 ) = 4X^2 - 8X + 4
3) 4X^2 - 8X + 4 + 8X = 4X^2 + 4
4) 4X^2 + 4 = 4 * ( X^2 + 1 )