Math, asked by riddhimankundal72, 2 days ago

The coefficient of x^2 in p(x) = (3x + 7)^3 is

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Answered by Aastha5175
0

Answer

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Answered by brainlysme14
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The coefficient of x² in p(x) = (3x + 7) ³ is 189.

Explanation:

(a+b) ³= a³+b³+3a²b+3b²a

(3x+7)  = (3x)³ + 7³ +3(3x)²*7 + 3*7²(3x)

(3x+7) ³ = 27x³ + 343 +189x² + 361x

The coefficient of x² in p(x) = (3x + 7)³ is 189.

Definition of coefficient:

It is an integer that is multiplied by the variable and written next to it. The coefficient of a variables without a number is 1 . Coefficients are multipliers, but constants are fixed values.

In the above expression,

27 is the coefficient of x³

189 is the coefficient of x²

361 is the coefficient of x.

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