Quadratic Equations

1The roots of x² + 7x + 10 = 0 are:

• A−2 and −5
• B2 and 5
• C−2 and 5
• D2 and −5

2If the discriminant of ax² + bx + c = 0 is zero, the roots are:

• ADistinct real
• BEqual real
• CComplex
• DNo real roots

3The discriminant of 2x² − 4x + 3 = 0 is:

• A−8
• B16
• C8
• D−16

4Sum + product of roots of 3x² + 5x − 2 = 0:

• ASum −5/3, Product −2/3
• BSum 5/3, Product 2/3
• CSum 5/3, Product −2/3
• DSum −5/3, Product 2/3

5Which quadratic has roots 3 and −1?

• Ax² − 2x − 3 = 0
• Bx² + 2x − 3 = 0
• Cx² − 2x + 3 = 0
• Dx² + 2x + 3 = 0