Name: SAT Math Help & School Math Mastery
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#35671

quadratic equations

equations

easy

45 sec

The solutions to $x^{2} - 7 x + 10 = 0$ are $r$ and $s$ . The solutions to $x^{2} - 3 x + 2 = 0$ are $t$ and $u$ . If the solutions to $x^{2} + A x + B = 0$ are $r + t$ and $s + u$ , what is the value of $A$ ?

• 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.