Hello, bubbles73!

Your IMG doesn't show up . . .

The way you typed it, it would be:10 = 121a + 53.0563 - 242a - [ a (22a/2a - 4.8233/2a)^2 + (22a/2a - 4.8233/2a) * (4.8233-22a)]

Is that correct?

. . They should have reduced or simplified the fractions!

We have: .

. . and that recurring binomial makes me suspicious . . .