Solve Quadratic Equations with One Variable HSA.REI.B.4 Grade 9 ACTASPIRE Practice Test Questions TOC | Lumos Learning

Solve Quadratic Equations with One Variable HSA.REI.B.4 Question & Answer Key Resources Lumos StepUp High School Algebra 1 - Workbooks and Online Assessments

Lumos StepUp High School Algebra 1 - Workbooks and Online Assessments Solve Quadratic Equations with One Variable

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When solving the equation, \(x^2-9=0\), a student thought they were doing the problem correctly but ended up with the wrong solution. The student's work is below. What did they do wrong and how could you fix the problem?

\(x^2-9=0\)

\(\left(x-3\right)\left(x-3\right)=0\)

\(x-3=0\)

\(x=3\)

Resource: Question

Question Type: Extended Constructed Response

Standard(s):HSA.REI.B.4

Standard Description: Solve quadratic equations in one variable

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