Question

2a² + 6a - 80 এর একটি উৎপাদক কোনটি?

Options

1

2(a-8)

Correct Answer
2

(a+5)

Correct Answer
3

(a+8)

Correct Answer
4

(a-4)

Correct Answer

Explanation

2a² + 6a - 80 = 2(a² + 3a - 40) = 2(a² + 8a - 5a - 40) = 2{a(a+8) - 5(a+8)} = 2(a+8)(a-5)। সুতরাং একটি উৎপাদক (a+8)।

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