question_text: Differentiate x^3 + 2x

text: d/dx(x^3 + 2x) = 3x^2 + 2

text: Reaches valid conclusion

sf_rules: Question specific

verification_notes:
CAS verification failed: Sympify of expression 'could not parse 'd/dx(x^3 + 2x)'' failed, because of exception being raised:
SyntaxError: invalid syntax. Perhaps you forgot a comma? (<string>, line 1)

verification_notes: Lowered confidence because tool checks failed.

verification_notes: LLM extraction raw output: Extract final answer and short worked steps as JSON with keys final_answer, method_tags, worked_steps, marking_points fr


question_text: Show that x^2 - 5x + 6 = 0 has two roots.

text: x^2 - 5x + 6 = (x-2)(x-3), hence roots are x=2,3

text: Reaches valid conclusion

verification_notes:
CAS verification failed: Sympify of expression 'could not parse 'x^2 - 5x + 6'' failed, because of exception being raised:
SyntaxError: invalid syntax (<string>, line 1)