please answer this question
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Answers
Answered by
1
Answer:
(B)
Step-by-step explanation:
100²-2² = (100-2)(100+2) = 98×102
hope it helps...
Answered by
33
Answer:
- (B) 100² - 2²
Question
Which of the following will be equal to 98 × 102 ?
(A) 101² - 2²
(B) 100² - 2²
(C) 102² - 98²
(D) None
Solution
- (100 - 2) × (100 + 2)
(a + b) (a - b) = a² - b²
- 100² - 2²
- 10000 - 4
- 9996
∴ Option (B) 100² - 2² is the right answer.
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