x2 - y2 + 2y - 1 এর একটি উৎপাদক- 

A

x + y + 1 

B

x - y 

C

x + y - 1 

D

x - y -1

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Updated: 2 months ago

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3x2 - 10x - 8 এর উৎপাদকে বিশ্লেষণ কোনটি?

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A

(3x - 2)(x + 4)

B

(3x + 2)(x - 4)

C

(3x + 4)(x - 2)

D

(3x - 4)(x + 2)

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a + b = 8 এবং a - b = 4 হলে ab = কত?

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A

4

B

8

C

10

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12

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How many real roots does the equation have?
x2 - 40

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A

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B

0

C

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D

None of these

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