3/5

$(2x - 1)(x + 2)$

green option: $2x^2 + 3x - 2$
blue option: $2x^2 - 5x - 2$
orange option: $2x^2 + 3x + 2$
light blue option: $2x^2 - 5x + 2$

Question

3/5

$(2x - 1)(x + 2)$

green option: $2x^2 + 3x - 2$
blue option: $2x^2 - 5x - 2$
orange option: $2x^2 + 3x + 2$
light blue option: $2x^2 - 5x + 2$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Polynomial Multiplication" ], "new_concepts": [], "current_concepts": [ "Polynomial Multiplication", "Special Products" ] } ## Expandir la expresión mediante la propiedad distributiva $$ (2x - 1)(x + 2) = 2x(x) + 2x(2) - 1(x) - 1(2) $$ ## Simplificar los términos individuales $$ 2x^2 + 4x - x - 2 $$ ## Agrupar términos semejantes $$ 2x^2 + 3x - 2 $$

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

(B) $2x^2 - 5x - 2$

(C) $2x^2 + 3x + 2$

(D) $2x^2 - 5x + 2$

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

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Expandir la expresión mediante la propiedad distributiva

Simplificar los términos individuales

Agrupar términos semejantes

Answer: