Watch this video for solving with the quadratic formula.
Watch this video for a review of using the discriminant.
Watch this video for solving with the quadratic formula.
Watch this video for a review of using the discriminant.
Match the discriminant with the indicated type of roots.
This won't turn green until you have them ALL right.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
discriminant is 0 | arrow_right_alt | 2 real rational roots |
discriminant is a positive perfect square | arrow_right_alt | 2 real irrational roots |
discriminant is negative | arrow_right_alt | 1 unique root |
discriminant is positive, but not a perfect square | arrow_right_alt | 2 nonreal roots |
Find the discriminant of
x2+12x-8 = 0
Enter your answer as a number, no spaces.
Solve
x2+12x-8=0.
Enter your answer as x={#, #}, with only 1 space after the comma, with the smaller number entered first. Simplify all fractions and radicals.
Find the discriminant of
Enter your answer as a number, no spaces.
Solve
Enter your answer as x={#, #}, with only 1 space after the comma, with the smaller number entered first. Simplify all fractions and radicals. No decimals.
Find the discriminant of
Enter your answer as a number, no spaces.
Solve
Enter your answer as x={#, #}, with only 1 space after the comma, with the smaller number entered first. Simplify all fractions and radicals.
If your #s are imaginary numbers, enter them in the form a+bi, where a and b are real numbers.
This one will be "ugly".
Find the discriminant of
Enter your answer as a number, no spaces.
Solve
Enter your answer as x={#, #}, with only 1 space after the comma, with the smaller number entered first. Simplify all fractions and radicals.
If your #s are imaginary numbers, enter them in the form a+bi, where a and b are real numbers.
Find the discriminant of
Enter your answer as a number, no spaces.
Solve
Enter your answer as x={#, #}, with only 1 space after the comma, with the smaller number entered first. Simplify all fractions and radicals.
If your #s are imaginary numbers, enter them in the form a+bi, where a and b are real numbers.
The discriminant of a quadratic equation is 122. Which describes the number and type of roots for that equation?
The discriminant of a quadratic equation is -36. Which describes the number and type of roots for that equation?
Hint: Check this with #1!
REVIEW
Solve by square roots.
Enter your answer as x={#, #}, with only 1 space after the comma, with the smaller number entered first. Simplify all fractions and radicals.
If your #s are imaginary numbers, enter them in the form a+bi, where a and b are real numbers.