halla la suma.
$(2x^2 + 5x - 7) + (-4x^2 + 6x + 3)$

- $2x^2 + 3x + 1$
- $-2x^2 - 11x - 4$
- $2x^2 + 5x - 7$
- $-2x^2 + 11x - 4$

Question

halla la suma.
$(2x^2 + 5x - 7) + (-4x^2 + 6x + 3)$

- $2x^2 + 3x + 1$
- $-2x^2 - 11x - 4$
- $2x^2 + 5x - 7$
- $-2x^2 + 11x - 4$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Algebraic Terms" ], "new_concepts": [ "Polynomial Addition" ], "current_concepts": [ "Algebraic Terms", "Polynomial Addition" ] } ## Agrupar términos semejantes $$ (2x^2 - 4x^2) + (5x + 6x) + (-7 + 3) $$ ## Simplificar cada grupo $$ -2x^2 + 11x - 4 $$

(A) $2x^2 + 3x + 1$

(B) $-2x^2 - 11x - 4$

(C) $2x^2 + 5x - 7$

(D) $-2x^2 + 11x - 4$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Polynomial Addition" ] }

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Explanation:

Agrupar términos semejantes

Simplificar cada grupo

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