The coefficient of x2 in p(x) = (3x + 7)3 is
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Answer:
there is no x square the co efficient is 0
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Answer:
The coefficient of x2 in p(x) = (3x + 7)3 is 189.
Step-by-step explanation:
(a+b) ^3 = a^3+b^3+3a^2b+3b^2a
(3x+7) ^3 = (3x)^3 + 7^3 +3(3x)^2*7 + 3*7^2(3x)
(3x+7) ^3 = 27x^3 + 343 +189x^2 + 361x
The coefficient of x2 in p(x) = (3x + 7)3 is 189.
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 x^3.
189 is the coefficient of x^2.
361 is the coefficient of x.
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