Name: SAT Math Help & School Math Mastery
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#15144

algebra

expressions

quadratic equations

medium

70 sec

If $(2 x - \frac{1}{3}) (x + \frac{2}{3}) = a x^{2} + b x + c$ for some constants $a$ , $b$ , and $c$ , what is the value of $b$ ?

• 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.