Express as a polynomial. (3x^{3} + 4x^{2} - 7x -

Brock Brown 2021-12-19 Answered
Express as a polynomial. (3x3+4x27x1)+(9x34x26x)
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Expert Answer

poleglit3
Answered 2021-12-20 Author has 32 answers
Step 1
Given: (3x3+4x27x1)+(9x34x26x)
We have to express the given expression as a polynomial.
Step 2
Explanation:
(3x3+4x27x1)+(9x34x26x)
=3x3+9x3+4x24x27x6x1
=12x313x1

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servidopolisxv
Answered 2021-12-21 Author has 27 answers
To obtain the sum of two polynomials in x, we may add the coefficients of like powers of x.
Therefore,
(3x3+4x27x+1)+(9x34x26x)
=3x3+4x27x+1+9x34x26x
[Removing the parenthesis]
=(3+9)x3+(44)x2+(76)x+1
[Adding the coefficients of like powers of x]
=12x313x+1 [Simplifying]
Hence, the required polynomial is
12x313x+1

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