Math Test Pre-Grade 2 quiz

Practice questions

1. Use the quadratic formula to solve x² + 4x - 1 = 0.

   • x = (-4 ± √20)/4
   • x = (4 ± √20)/2
   • x = (-4 ± √20)/2
   • x = (-4 ± 2√5)/2

2. In a right triangle with a hypotenuse of 10 and one leg of 6, what is the length of the other leg?

   • 9
   • 7
   • 5
   • 8

3. Use the quadratic formula to solve x² - 6x + 4 = 0.

   • x = 3 ± 2√5
   • x = 3 ± √5
   • x = 6 ± √5
   • x = -3 ± √5

4. What is the value of cos45°?

   • 1
   • √3/2
   • 1/2
   • √2/2

5. Solve the quadratic equation x² + x - 12 = 0.

   • x=-3,4
   • x=-2,6
   • x=3,-4
   • x=2,-6