1) (x-5)^2=3 2) x^2=(√6+2√5)^2-4√30 - вопрос №83568961523226252430 от Апуля11 03.04.2020 19:40

Question

Алгебра: 1) (x-5)^2=3 2) x^2=(√6+2√5)^2-4√30

Апуля11 · Answer

1) (x - 5)² = 3x - 5 = √3              x - 5 = - √3X₁ = 5 + √3            X₂ = 5 - √32) x² = (√6 + 2√5)² - 4√30x² = 6 + 4√30 + 20 - 4√30x² = 26X₁  = √26            X₂  = - √26...