This test has 9 questions worth 20 points. Show every step, because partial credit is given for correct work. Check each factorization by multiplying. Expect about 45 minutes.
Test information
- Grade: Algebra 1
- Chapter: Factoring Polynomials
- Common Core: A-SSE.A.2, A-SSE.B.3a
- Time: 45 minutes
- Total: 20 points (Question 1: 2 pts; Question 2: 2 pts; Question 3: 2 pts; Question 4: 2 pts; Question 5: 2 pts; Question 6: 3 pts; Question 7: 3 pts; Question 8: 2 pts; Question 9: 2 pts)
Question 1: Greatest common factor (2 points)
Factor out the greatest common factor.
- \(15 x^{3} – 10 x^{2}\) (1 point)
- \(12 a^{2} b + 18 a b^{2}\) (1 point)
Question 2: Factor trinomials (2 points)
Factor each trinomial.
- \(x^{2} + 11 x + 24\) (1 point)
- \(x^{2} – 4 x – 21\) (1 point)
Question 3: Factor with a leading coefficient (2 points)
Factor each trinomial.
- \(3 x^{2} + 10 x + 8\) (1 point)
- \(4 x^{2} – 8 x – 5\) (1 point)
Question 4: Special patterns (2 points)
Factor.
- \(49 x^{2} – 36\) (1 point)
- \(9 x^{2} + 30 x + 25\) (1 point)
Question 5: Factor by grouping (2 points)
Factor each polynomial by grouping.
- \(x^{3} + 5 x^{2} + 2 x + 10\) (1 point)
- \(3 x^{3} – 6 x^{2} – 4 x + 8\) (1 point)
Question 6: Factor completely (3 points)
Factor completely.
- \(3 x^{2} – 48\) (1 point)
- \(2 x^{3} + 12 x^{2} + 18 x\) (1 point)
- \(6 x^{2} – 5 x – 4\) (1 point)
Question 7: Zeros and the graph (3 points)
The graph of \(y=x^{2}-x-6\) is shown.
- Factor \(x^{2}-x-6\). (1 point)
- Solve \(x^{2}-x-6=0\). (1 point)
- Label the x-intercepts on the graph by writing their coordinates. (1 point)
Question 8: Poster dimensions (2 points)
A rectangular poster has area \(2x^{2}+11x+12\) square inches and width \(x+4\) inches.
- Write an expression for the length. (1 point)
- Find the length and width when \(x=5\). (1 point)
Question 9: Is it complete? (2 points)
Aisha factors \(4x^{2}-100\) as \((2x-10)(2x+10)\).
- Explain why the factorization is not complete. (1 point)
- Write the complete factorization. (1 point)
See every chapter on the Algebra 1 math page.



