{"result":{"text":"begin mathsize 14px style open vertical bar a with rightwards arrow on top cross times b with rightwards arrow on top close vertical bar squared equals a with rightwards arrow on top squared b with rightwards arrow on top squared minus open parentheses a with rightwards arrow on top. b with bar on top close parentheses squared equals 4 minus 1 half equals 15 over 4 end style"},"status":"ok"}