Answer:
Explanation:
subtract 8 from both sides
[tex]x^2 \leq 4[/tex]
square root both sides
[tex]x\leq 2[/tex]
for the first one, x^2 + 8 < 12
subtract 8 from both sides, x^2 < 4
for x to be < 2, sqrt both sies
2^2 is 4
sorry if my explanation is kinda weird
