16 - 2x3 এর মান শূন্য হলে x এর একটি মান-
Solution
Correct Answer: Option B
16 - 2x3 = 0
বা, -2(x3 - 8) = 0
বা, x3 - 8 = 0
বা, (x - 2)(x2 + 2x + 4) = 0
হয়, x - 2 = 0
∴ x = 2
অথবা, x2 + 2x + 4 = 0
বা, -2(x3 - 8) = 0
বা, x3 - 8 = 0
বা, (x - 2)(x2 + 2x + 4) = 0
হয়, x - 2 = 0
∴ x = 2
অথবা, x2 + 2x + 4 = 0
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