seemingly simple problem i just cant seem to solve
because of the square roots, i can assume that all numbers are possitive so i can open up by multiplying by the power of 2
divide by 2 and then again power of 2-to get rid of the sqrt
now i solve it and i get -1<=X<=4 every time but the solution is -5<=x<=4
what am i doing wrong??
the answer is any x between -5 and 4, it is the right answer but i dont know how to get to it...
i can only get from -1 to 4, but if you put any x till -5 it works, how do i solve this