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#### Online Quiz (WorksheetABCD)

Questions Per Quiz = 2 4 6 8 10

### High School Mathematics2.70 Problems on Radicals Using Formulas - II

 Example: Expand (Ö3 - Ö2)2. Solution: The above problem in the form of (a - b)2 = a2 - 2ab + b2. Here a = Ö3 and b = Ö2, substitute these values in the above formula, we get, (Ö3 - Ö2)2 = (Ö3)2 - 2 Ö3 * Ö2 + (Ö2)2 = 3 - 2Ö6 + 2 = 5 - 2Ö6. Directions: Solve the following problems. Also write at least ten examples of your own.
 Q 1: Expand (Ö11 - 3)2.17 - 6Ö1117 - 2Ö11 Q 2: Expand (Ö17 - Ö7)2.22 - 2Ö11924 - 2Ö119 Q 3: Expand (Ö13 - Ö5)2.16 - 2Ö6518 - 2Ö65 Q 4: Expand (Ö7 - Ö8)2.15 - 2Ö5613 - 2Ö56 Q 5: Expand (Ö11 - Ö7)2.16 - 2Ö7718 - 2Ö77 Q 6: Expand (Ö19 - Ö3)2.22 - 2Ö5720 - 2Ö57 Q 7: Expand (Ö10 - Ö5)2.13 - 2Ö5015 - 2Ö50 Q 8: Expand (Ö5 - Ö7)2.12 - 2Ö3510 - 2Ö35 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!