Question

Cat face |4x la a doua -36| + |2x-6| = 0? Va rog , ajutati-ma!!!

Answer 1

|4x²-36| + |2x-6| = 0
      ↓
|4x²-36|=0 => 4x²-36=0
=> x²=9 => x={-3,3}  (1)

       ↓
|2x-6|=0 => 2x-6 =0 => 2x=6 => x=3   (2)
din (1)si (2) => S={3}