Starter quiz

  • Write 7(2\sqrt {5} + 3\sqrt {3}) in the form x\sqrt {5} + y\sqrt {3}. What is the value of x?
    • '14' ✓
  • Write 7(2\sqrt {5} + 3\sqrt {3}) in the form x\sqrt {5} + y\sqrt {3}. What is the value of y?
    • '21' ✓
  • Write 5\sqrt {3}(2\sqrt {8} + 3\sqrt {2})-\sqrt {3}(\sqrt {8} + 2\sqrt {2}) in the form a\sqrt {b}. What is the value of b?
    • '6' ✓
  • Write 5\sqrt {3}(2\sqrt {8} + 3\sqrt {2})-\sqrt {3}(\sqrt {8} + 2\sqrt {2}) in the form a\sqrt {b}. What is the value of a?
    • '31' ✓
  • Write \sqrt {5}(3\sqrt {5} + 2)-(3\sqrt {5} + 2) in the form a-\sqrt {b}. What is the value of b?
    • '5' ✓
  • Write \sqrt {5}(3\sqrt {5} + 2)-(3\sqrt {5} + 2) in the form a-\sqrt {b}. What is the value of a?
    • '13' ✓
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