Answer:
Please attach the screenshot for the receipt so people can answer
Add 5 to both sides
x^2<5
take the square root of both sides
x<+/-√5
if you really think about it
√-5>x>-√5 is the solution since there is a squared
5/6 x 2 3/4 = 5/6 x (2x4+3)/4 = 5/6 x 11/4 = 55/24 = 2 7/24