9x² + 18x - 40 কে উৎপাদকে বিশ্লেষণ কোনটি?
Solution
Correct Answer: Option A
9x2 + 18x - 40
= 9x2 + 30x - 12x - 40
= 3x(3x + 10) - 4(3x + 10)
= (3x + 10)(3x - 4)
= 9x2 + 30x - 12x - 40
= 3x(3x + 10) - 4(3x + 10)
= (3x + 10)(3x - 4)
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