Question

Rezolvati ecuatia
(x+1)² + 2(x-2)(x+2) = (3x-1)(x-3) + 2

Answer 1

Răspuns:

Explicație pas cu pas:

(x+1)² + 2(x-2)(x+2) = (3x-1)(x-3) + 2 <=>

x²+2x+1+2x²-8 = 3x²-4x+3+2 <=>

3x²-3x²+2x+4x-7-5 = 0  <=> 6x-12 = 0

<=> 6x = 12 => x = 12/6 => x = 2