Name: SAT Math Help & School Math Mastery
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#35424

completing the square

quadratic equations

equations

hard

120 sec

A quadratic equation $a x^{2} + b x + c = 0$ has coefficients $a$ , $b$ , and $c$ that are rational numbers. If one of the solutions to this equation is $3 - 7$ , what is the value of the discriminant, $b^{2} - 4 a c$ ?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.