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#### Online Quiz (WorksheetABCD)

Questions Per Quiz = 2 4 6 8 10

### High School Mathematics2.69 Problems on Radicals Using Formulas - I

 Example: Expand (Ö5 + Ö3)2. Solution: The above problem in the form of (a+b)2 = a2 + 2ab + b2. Here a = Ö5 and b = Ö3, substitute these values in the above formula, we get, (Ö5 + Ö3)2 = (Ö5)2 + 2Ö5*Ö3 + (Ö3)2 = 5 + 2Ö15 + 3 = 8 + 2Ö15. Directions: Solve the following problems. Also write at least ten examples of your own.
 Q 1: Expand (Ö8 + Ö7)2.15 + 2Ö5613 + 2Ö56 Q 2: Expand (Ö5 + Ö3)2.8 + 2Ö156 + 2Ö15 Q 3: Expand (Ö7 + Ö3)2.10 + 2Ö218 + 2Ö21 Q 4: Expand (Ö7 + Ö5)2.10 + 2Ö3512 + 2Ö35 Q 5: Expand (Ö5 +2)2.9 + 2Ö59 + 4Ö5 Q 6: Expand (Ö2 + 8)2.66 + 16Ö266 + 2Ö10 Q 7: Expand (Ö2 + 5)2.27 + 2Ö1027 + 10Ö2 Q 8: Expand (Ö3 + 7)2.52 + 2Ö352 + 14Ö3 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!