2(X-1)^2= 3X+2
2(X^2 -2X + 1)= 3X+2
2X^2-4X+2=3X+2
2X^2-7X=0
X(2X-7)=0
1) X=0
2) 2X-7=0
X= 7/2
(X-2)(X+3) =24
X^2+3X-2X-6=24
X^2 +X-30=0
delta= 1^2+ 4×30=121 >0 => X1,X2= (-1+-11)/2
X1= -12/2=-6
X2= 10/2=5
(X-3)(X+2)=14
X^2-X-6-14=0
X^2-X-20=0
delta=1^2- 4×(-20)= 1+80=81>0 =>
=> X1,X2= (1+-9)/2
X1= -8/2=-4
X2=10/2=5
