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- 1. Multiple ChoiceIn the quadratic formula, the expression
b2-4ac is calleddiscrimdeterminantdiscriminantnone of these - 2. Multiple ChoiceIf 3+2i is a solution of a quadratic equation, then other solution of this quadratic equation is2-3i3+2i1/3 -1/2i3-2i
- 3. Multiple ChoiceOne solution of the quadratic equation
x2-7x+12=0 isx=3x=2x=-3x=-2 - 4. Multiple Choice
5, -5
8.66, -8.66
25, -25
7, -7
- 5. Multiple Choice
5x2 + 5 = 50 Solve for x by taking the square root.
5, -5
3, -3
7.11, -7.11
6.43, - 6.43
- 6. Multiple Choice
Solve the equation by factoring.
x = {-5,-3}
x = {5,-3}
x = {-5,3}
x = {5,3}
- 7. Multiple Choice
What is the quadratic formula?
- 8. Multiple Choice
Use the discriminant to find the number of solutions for the following equation.
y = -3x2 +5x - 8
2 solutions
1 solution
0 solutions
- 9. Multiple Choice
Use the discriminant to find the number of solutions for the following equation.
y = 4x2 - 9
2 solutions
1 solution
0 solutions
- 10. Multiple Choice
Solve the equation using the quadratic formula.
4x2 +9x = 12x
x = {0, 3/4}
x = {0, -3/4}
x = {0, 4/3}
no solution
- 11. Multiple ChoiceSimplify.-5i55i-5
- 12. Multiple ChoiceFind the sum.
(5-2i) + (-7+8i)-2+6i12+6i-35-16i2-35 -16i - 13. Multiple ChoiceSimplify √-11-i-1i
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