Name: SAT Math Help & School Math Mastery
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#15023

algebra

expressions

hard

60 sec

The expression $(9000 + 120 k^{2}) - 3 (30 k^{2} + 500)$ can be written in the form $a k^{2} + b$ , where $a$ and $b$ are constants. What is the value of $a + b$ ?

• 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.