MCQ
$a^2- b^2$ is equal to
- A$2ab$
- B$-2ab$
- ✓$(a + b)(a - b)$
- D$ab$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
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Range of Marks Obtained
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Number of students
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$250–300$
|
$10$
|
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$300–350$
|
$12$
|
|
$350–400$
|
$14$
|
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$400–450$
|
$13$
|
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$450–500$
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$11$
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