Hi Everybody. First technical post on here, need help with a high school grade10 Algebra question included in a section on Quadratic equations.

I've never seen a q like this so really not sure how to approach it.

Express b in terms of j

8 - {(b^{2}- 64)j} + b = 18^{1/2 }Tried several angles of expanding the expressions but can't get down to anything that helps me simplify further.

Here are some of the approaches I tried.

1.

- (b+8)(b-8)j + (b+8) = 18^{1/2 }(b+8)(b-8)j - (b+8) = - 18^{1/2 }(b+8).[(b-8)j - 1] = - 18^{1/2 }

Not sure what to do next. Tried a few other approaches but still can't see I'm on the right track.

Any suggestions?

(and I also hope this doesn't get demoted down to the "normal" Algebra section)

Thanks.