Question

-2x(x-4)=-3(x+4) alquem sabe??

Answer 1

-2x(x-4)=-3(x+4) ===> *(-1)

2x(x-4)= 3(x+4)

2x²-8x -3x -12 = 0

2x² -11x -12= 0

∆= 121 -96 = 25 ==> √∆=5

x' = -b+√∆/2a = 11+5/4 = 16/4= 4✓

x" = -b-√∆/2a = 11-5/4 = 6/4= 3/2 ✓