arrow_backMathematics Grade 10
Quadratic Equations
Review
Submission Date: Oct 24, 2023 • Review Date: Oct 26, 2023
Total Score
18/20
verified_user
A- Grade
MH
Ms. Henderson
Mathematics Instructor
Teacher Remarks
"Great effort! You've mastered the quadratic formula, but watch your signs in step 3."
lightbulb
Improvement Tips
Focus on verifying your discriminant calculations. A quick mental check of b² - 4ac before proceeding can save you from propagation errors in later steps.
Competency Breakdown
Quadratic Formula Application100%
Algebraic Sign Management75%
Discriminant Analysis80%
edit_noteAnnotated Answer Sheet
Perfect execution of the expansion here. Very neat!
check_circleCorrection Required
This should be negative (-4). When you multiplied through, the sign didn't flip correctly.
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Ready to master the next step?
You're making great progress. Take a short 5-minute practice quiz on "Polynomial Division" to keep the momentum going!