Question

помогите пож с логарифмами!!!

Answer 1

1. x² + 2x – 3 = x – 3 ⇔ x² + x = 0 ⇒ x₁ = –1, x₂ = 0.

2. loga(x) – 0.5loga(x) + 0.25loga(x) = 3/4 ⇔ 0.75loga(x) = 0.75 ⇔ loga(x) = 1 ⇔ loga(x) = loga(a) ⇒ x = a.