1 . (a-b),(a2-ab),(a2-b2) এর লসাগু কোনটি ?
- A. a2-b2
- B. a(a-b)
- C. (a-b)
- D. a(a2-b2)
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2 . a + b = 7, a - b = 3 হলে a2-b2 = কত?
- A. ১৭
- B. ১৯
- C. ২১
- D. ২৩
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3 . 4a+b,10a-b
- A.
- B.
- C.
- D.
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4 . a+b,a2-b2
- A.
- B.
- C.
- D.
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5 . a2+b2-c2+2aba2-b2+c2+2ac=?
- A.
- B.
- C.
- D.
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6 . a+b,a2-b2
- A.
- B.
- C.
- D.
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7 . a2-b2=8
- A.
- B.
- C.
- D.
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8 . a-ba2-aba2-b2
- A.
- B.
- C.
- D.
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9 . 24a+b,10a-b
- A.
- B.
- C.
- D.
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10 . x-aa2-b2=x-bb2-a2
- A.
- B.
- C.
- D.
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11 . a2+b2-c2+2aba2-b2+c2+2ac=?
- A.
- B.
- C.
- D.
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12 . a2-b2
- A. 1
- B. (a-b)
- C. (a+b)
- D.
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13 . a2-b2
- A. 16
- B. 32
- C. 36
- D. 49
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14 . a2-b2
- A.
- B.
- C.
- D.
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15 . a2-b2
- A. 34
- B. 39
- C. 36
- D. 49
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