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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

High School Mathematics
2.69 Problems on Radicals Using Formulas - I

Example:
Expand (5 + 3)2.
Solution:
The above problem in the form of (a+b)2 = a2 + 2ab + b2.
Here a = 5 and b = 3, substitute these values in the above formula, we get,
(5 + 3)2 = (5)2 + 25*3 + (3)2
= 5 + 215 + 3
= 8 + 215.
Directions: Solve the following problems. Also write at least ten examples of your own.
Q 1: Expand (2 + 5)2.
27 + 102
27 + 210

Q 2: Expand (2 + 8)2.
66 + 162
66 + 210

Q 3: Expand (6 + 3)2.
9 + 218
7 + 218

Q 4: Expand (5 +2)2.
9 + 45
9 + 25

Q 5: Expand (7 + 5)2.
12 + 235
10 + 235

Q 6: Expand (8 + 3)2.
11 + 224
24 + 224

Q 7: Expand (7 + 3)2.
10 + 221
8 + 221

Q 8: Expand (5 + 3)2.
6 + 215
8 + 215

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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