// Numbas version: exam_results_page_options {"name": "Rachel's copy of Factorising Quadratics (1)", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "statement": "

Factorise the following quadratic expression.

\n

Write your answer in the form $(x + a)(x + b)$.

", "extensions": [], "tags": [], "advice": "", "variable_groups": [], "metadata": {"licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International", "description": "

Algebra:  Quadratic Factorisation (no equation needed)

"}, "parts": [{"marks": 0, "prompt": "

$\\simplify{x^2+{linear}x+{const}}$ = [[0]].

\n

\n

\n

\n

", "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "showFeedbackIcon": true, "type": "gapfill", "variableReplacements": [], "gaps": [{"checkvariablenames": true, "answer": "(x+{a})(x+{b})", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "variableReplacements": [], "answersimplification": "all", "scripts": {}, "marks": "2", "musthave": {"message": "

Ensure you factorise the expression.

", "showStrings": false, "strings": ["(", ")"], "partialCredit": 0}, "notallowed": {"message": "

Ensure you factorise the expression.

", "showStrings": false, "strings": ["xx", "x^2", "x**2"], "partialCredit": 0}, "expectedvariablenames": ["x"], "showCorrectAnswer": true, "showpreview": true, "type": "jme", "vsetrangepoints": 5, "vsetrange": [0, 1], "checkingtype": "absdiff", "checkingaccuracy": 0.001}], "scripts": {}}, {"marks": 0, "prompt": "

$\\simplify{x^2+{lin}x+{con}}$ = [[0]].

", "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "showFeedbackIcon": true, "type": "gapfill", "variableReplacements": [], "gaps": [{"checkvariablenames": false, "answer": "(x+{c})(x+{d})", "variableReplacementStrategy": "originalfirst", "showFeedbackIcon": true, "variableReplacements": [], "scripts": {}, "marks": "2", "expectedvariablenames": [], "showCorrectAnswer": true, "showpreview": true, "type": "jme", "vsetrangepoints": 5, "vsetrange": [0, 1], "checkingtype": "absdiff", "checkingaccuracy": 0.001}], "scripts": {}}], "variables": {"const": {"group": "Ungrouped variables", "templateType": "anything", "definition": "a*b", "description": "", "name": "const"}, "a": {"group": "Ungrouped variables", "templateType": "anything", "definition": "random(-10..10 except 0)", "description": "", "name": "a"}, "c": {"group": "Ungrouped variables", "templateType": "anything", "definition": "random(-10..10 except 0)", "description": "", "name": "c"}, "con": {"group": "Ungrouped variables", "templateType": "anything", "definition": "c*d", "description": "", "name": "con"}, "d": {"group": "Ungrouped variables", "templateType": "anything", "definition": "random(-10..10 except 0 except-c)", "description": "", "name": "d"}, "b": {"group": "Ungrouped variables", "templateType": "anything", "definition": "random(-10..10 except 0 except-a)", "description": "", "name": "b"}, "lin": {"group": "Ungrouped variables", "templateType": "anything", "definition": "c+d", "description": "

lin

", "name": "lin"}, "linear": {"group": "Ungrouped variables", "templateType": "anything", "definition": "a+b", "description": "", "name": "linear"}}, "variablesTest": {"condition": "", "maxRuns": "127"}, "name": "Rachel's copy of Factorising Quadratics (1)", "preamble": {"js": "", "css": ""}, "rulesets": {}, "ungrouped_variables": ["a", "b", "linear", "const", "c", "d", "lin", "con"], "type": "question", "contributors": [{"name": "Rachel Staddon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/901/"}]}]}], "contributors": [{"name": "Rachel Staddon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/901/"}]}