Question

radical din 9 x^{2} + 6 + 1 totul sub radical =5

Answer 1

[tex]\sqrt{9x^2+6x+1}=5\\ \sqrt{(3x+1)^2}=5\\ |3x+1|=5\\ a) 3x+1=5\Rightarrow x=\frac{4}{3}\\ b)3x+1=-5\Rightarrow x=-2[/tex]