Canonical URI: https://w3id.org/kmath/textbook_solution/chunjae_jeon_solution_body_p033_03
| rdf:type | math:TextbookSolution |
|---|---|
| rdfs:label | 천재전 p033 예제 3 풀이 |
| rdfs:comment | 천재전 공통수학1 본문 p033의 예제 3 풀이. |
| math:answerText | \((x^2+2x+3)(x^2-2x+3)\) |
| math:explanationText | \(A^2-B^2\)의 꼴로 변형하면 \[ x^4+2x^2+9=(x^4+6x^2+9)-4x^2=(x^2+3)^2-(2x)^2 \] \[ =\{(x^2+3)+2x\}\{(x^2+3)-2x\}=(x^2+2x+3)(x^2-2x+3) \] 이다. |
| math:mappingConfidence | 1.0 |
| math:pageStart | 33 |
| math:problem | textbook_problem:chunjae_jeon_vision_p033_03 |
| math:reviewStatus | reviewed |
| math:solutionKind | worked_solution |
| math:usesSolutionPattern | solution_pattern:substitution_factorization |