Checkpoint: relations, building and the cubic

What is the sum of the zeros of 4x² + 8x − 5?

• −2
• −8
• 2

Which quadratic has zeros 3 and −2?

• `x² + x − 6`
• `x² − x + 6`
• `x² − x − 6`

For x² + 3x − 10, the product of the zeros is −10. What does that say?

• Both zeros are positive.
• The zeros sit on opposite sides of 0.
• Both zeros are negative.

α and β are the zeros of x² − 5x + 3. What is α² + β²?

• 25
• 31
• 19

What is the sum of the zeros of x³ − 9x² + 26x − 24?

• −9
• 9
• 26