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Random Quadratic Equations (Slower version)

Can you solve these random quadratic equations? The equations change every time!
Enter the two solutions in either order.
Answer must correspond to highlighted box!
All solutions are integers.
Too much time? Try the Fast Math version as well for a challenge!
Quiz by
Stewart
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Last updated: September 26, 2019
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First submittedSeptember 26, 2019
Times taken372
Average score86.7%
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Equation
Solutions
x² - 19x + 84
7 and 12
x² - 4x - 165
-11 and 15
x² - 25x + 156
12 and 13
x² - 8x + 16
4 and 4
x² + 20x + 99
-9 and -11
Equation
Solutions
x² - 16x + 64
8 and 8
x² - 9x - 70
-5 and 14
x² - x - 210
-14 and 15
x² - 21x + 104
8 and 13
x² - 13x + 30
3 and 10
Equation
Solutions
x² - 11x + 30
5 and 6
x² - 12x - 28
-2 and 14
x² + 6x + 8
-2 and -4
x² + 17x + 60
-5 and -12
x² + 17x + 52
-4 and -13
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3 Comments
+3
Level 54
Apr 27, 2021
Finished in 3:20. I find it much, much easier to factor the ones that are factorable before heading straight to the Quadratic Formula.
+1
Level 41
Jul 11, 2025
All of them are factorable, although what I did was look first for perfect square trinomials.
+2
Level 55
Mar 1, 2024
Tip : the coefficient of x is the opposite of the sum of the solutions and the constant is their product, hence reverse engineering is easy.