Question

Rezolvati in R ecuatia : a) |3x+7|=18 b)|x| ·|x-1|=2 c) |12-7x|=3 d) |x²-5x+5|=1 VA ROG DAU COROANA ............ MULTUMESC MULT !!!!!!!!!

Answer 1

3x=18-7
3x=11
x=11/3
x=3,(6)

x*x-1=2
x=2+1
x=3/3
x=1

-3x+5=1
-3x=1-5
-3x=-4| /-1
3x=4
x=4/3
x=1,(3)