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chapter 2 Operations with Integers - Part 7

If a = -6 and b = -4, evaluate (a - b) × (a + b).

Type: MCQ • Marks: 1
If a = -6 and b = -4, evaluate (a - b) × (a + b).
Options
A. -20
B. 20
C. -100
D. 100
Explanation
(a - b) = (-6) - (-4) = -2. (a + b) = (-6) + (-4) = -10. Product = (-2) × (-10) = 20.
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Class 7th Ganita Prakash 2

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