Answer:
[tex]x\geq 2[/tex]
Step-by-step explanation:
by squaring both sides:
[tex]2x^2 - 1 \geq x^2 + 2x - 1[/tex]
canceling out 1
[tex]2x^2 \geq x^2 + 2x[/tex]
subtract x^2 on both sides
[tex]x^2\geq 2x[/tex]
divide by x on both sides
[tex]x\geq 2[/tex]
