OCR MEI C1 2006 June — Question 7

Exam BoardOCR MEI
ModuleC1 (Core Mathematics 1)
Year2006
SessionJune
TopicIndices and Surds

7
  1. Simplify \(6 \sqrt { 2 } \times 5 \sqrt { 3 } - \sqrt { 24 }\).
  2. Express \(( 2 - 3 \sqrt { 5 } ) ^ { 2 }\) in the form \(a + b \sqrt { 5 }\), where \(a\) and \(b\) are integers.