Question

rezolvati in R ecuatiile:
2(x-1)²=3x+2
(x-2)(x+3)=24

Answer 1

2x^2-4x+2=3x+2 ; 2x^2-4x-3x=0 ; 2x^2-7x=0 ; x(2x-7)=0 ; => x=0 sau 2x-7=0 => 2x=7 => x=7/2 ; (x-2)(x+3)=24 ; x^2+3x-2x-6=24 ; x^2+x=24+6 ; x^2+x-30=0 ; Delta=1+120=121 ; x1,2=(-1+-11)/2 ; x1=10/2=5 ; x2= -12/2=-6 ; Nu am mai putut pune poza după edit.