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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

High School Mathematics
2.70 Problems on Radicals Using Formulas - II

Example:
Expand (3 - 2)2.
Solution:
The above problem in the form of (a - b)2 = a2 - 2ab + b2.
Here a = 3 and b = 2, substitute these values in the above formula, we get,
(3 - 2)2 = (3)2 - 2 3 * 2 + (2)2
= 3 - 26 + 2
= 5 - 26.
Directions: Solve the following problems. Also write at least ten examples of your own.
Q 1: Expand (17 - 2)2.
19 - 234
17 - 234

Q 2: Expand (10 - 5)2.
15 - 250
13 - 250

Q 3: Expand (7 - 8)2.
15 - 256
13 - 256

Q 4: Expand (11 - 7)2.
16 - 277
18 - 277

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

Q 6: Expand (19 - 3)2.
20 - 257
22 - 257

Q 7: Expand (13 - 5)2.
18 - 265
16 - 265

Q 8: Expand (10 - 2)2.
14 - 210
14 - 410

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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