Quadratic Equations Quiz

Which of the following is a quadratic equation?

• 3r2+2r-1

• 5t-8=3

• s2+5s-7=0

• 2x2-7x≥5

In the quadratic equation 4x2+5x-6=0, which is the Quadratic Term?

• 4x2

• x2

• 5x

• -6

The roots of the quadratic equation are -5 and 3. Which of the following quadratic equations has these roots?

• x2-8x+15=0

• x2+8x+15=0

• x2-2x-15=0

• x2+2x-15=0

What are the roots of the quadratic equation x2+x-90=0?

• -5 and 16

• -9 and 10

• -10 and 9

• -16 and 5

Given the quadratic equation: x2+8x=-7, what is the sum of the roots?

• -7

• -8

• 7

• 8

What is the product of the roots in x2+8x=-7?

• -7

• -8

• 7

• 8

One of the roots of 2x2-13x+20=0 is 4. What is the other root?

• -2/5

• -5/2

• 2/5

• 5/2

What are the roots of the quadratic equation x2=3x+10?

• -2 and-5

• 2 and-5

• -2 and 5

• 2 and 5

One of the roots of 3x2-17x+10=0 is 5. What is the other root?

• -2/3

• 2/3

• -3/2

• 3/2