now square both sides and continue. Check the solution when done, squaring often introduces erroneous solutions
im sorry wont happen agian but what do i do after this step?
if i square both sides i get y+4=25 then i subtrace 4 from both sides and i get y=21 is this correct?
well 21 plus 4 is 25 then the square root of 25 is 5 so 5 -2=3 so 21 is the correct answer?