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The coefficient of x in the expansion of (x +3)3 -(a) 1(b)18(c) 9(d)27Daint Laulas |
Answer» Answer :(d) 27 step by step :
⇛(x + 3)³ = x³ + 3³ + 3(3)x ( x + 3) ⇛(x + 3)³ = x³ + 9 + 9X(x + 3) ⇛(x + 3)³ = x³ + 9 + 9x² + 27x Here x is being multiplied by 27 so, coefficient of x is 27. |
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