Canonical URI: https://w3id.org/kmath/textbook_solution/jihak_solution_body_p030_03
| rdf:type | math:TextbookSolution |
|---|---|
| rdfs:label | 지학사 p030 예제 2 풀이 |
| rdfs:comment | 지학사 공통수학1 본문 p030 예제 2 풀이. |
| math:answerText | (1) \((2x+1)^3\) (2) \((a-3b)(a^2+3ab+9b^2)\) |
| math:explanationText | (1) \(8x^3+12x^2+6x+1=(2x)^3+3(2x)^2\cdot1+3\cdot2x\cdot1^2+1^3=(2x+1)^3\)이다. (2) \(a^3-27b^3=a^3-(3b)^3=(a-3b)\{a^2+a\cdot3b+(3b)^2\}=(a-3b)(a^2+3ab+9b^2)\)이다. |
| math:mappingConfidence | 1.0 |
| math:pageStart | 30 |
| math:problem | textbook_problem:jihak_vision_p030_03 |
| math:reviewStatus | reviewed |
| math:solutionKind | worked_solution |
| math:usesSolutionPattern | solution_pattern:substitution_factorization |