Hello, OReilly!

Here's a start . . .

(But I sincerely hope there's a better method!)

If . , then prove that: .

. . . . .[1] . . . . . . . [2] . . . . . . .[3]

From [1] = [3], we have: .

. . Solve for .(a)

From [2] = [3], we have: .

. . Solve for .(b)

Equate(a)and(b): .

. . and we have: .

Rearrange terms: .

Factor: .

Divide by

I'll letyouwork on the other equality . . .