(Grade 11) Section 2.1 - Working With Quadratic Expressions
6 Questions
| Total Attempts: 200
Complete the following questions
Questions and Answers
- 1.Expand and simplify (3x + 4)(2x – 2)
- A.
6x^2 + 2x – 8
- B.
6x^2–14x–8
- C.
6x^2+14x+8
- D.
6x^2–8
- 2.Evaluate 3(2x+3)2 for x = –2
- A.
–93
- B.
–69
- C.
3
- D.
147
- 3.
Which expression represents the area of the triangle?- A.
(x^2+5x+3) / 2
- B.
(2x^2+7x–3) / 2
- C.
(2x^2+6x–3) / 2
- D.
(2x^2+5x–3)/2
- 4.
A pendant has a radius of x + 10mm. Which expression describes the area of the pendant?
- A.
πx^2+20x+100
- B.
2πx + 20π
- C.
πx^2+20πx+100π
- D.
100πx^2
- 5.
Which describes the area of the figure as a simplified polynomial?
- A.
–x^2+8x+1
- B.
5x^2+3
- C.
5x^2+8x+3
- D.
8x^2+8x
- 6.A fish pond has a diameter of x metres. Which expression describes the area of the fish pond?
- A.
πx^2
- B.
(πx^2)/4
- C.
(πx^2)/2
- D.
4πx^2
Back to top