{"result":{"text":"begin mathsize 14px style equals stack l i m with x rightwards arrow 3 below fraction numerator begin display style 1 half end style open square brackets f open square brackets f left parenthesis x right parenthesis close square brackets to the power of 4 minus 3 to the power of 4 close square brackets over denominator x minus 3 end fraction open parentheses 0 over 0 space space f o r m close parentheses equals stack l i m with x rightwards arrow 3 below fraction numerator begin display style 1 half end style open square brackets 4 open parentheses f left parenthesis x right parenthesis close parentheses cubed f apostrophe left parenthesis x right parenthesis close square brackets over denominator 1 end fraction end style"},"status":"ok"}