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algol [13]
3 years ago
6

What is the additive inverse of the polynomial –9xy2 + 6x2y – 5x3

Mathematics
2 answers:
elena-s [515]3 years ago
6 0
9xy2-6x2y+5x3.  Change every sign in the equation as if you were multiplying each part by -1.
kobusy [5.1K]3 years ago
6 0

Answer:  The required additive inverse of the given polynomial is 9xy^2-6x^2y+5x^3.

Step-by-step explanation:  We are given to find the additive inverse of the following polynomial :

P=-9xy^2+6x^2y-5x^3~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

Let Q be the polynomial that represents the additive inverse of the polynomial P.

Then, the sum of the polynomials P and  must be zero.

That is,

P+Q=0\\\\\Rightarrow (-9xy^2+6x^2y-5x^3)+Q=0\\\\\Rightarrow Q=0-(-9xy^2+6x^2y-5x^3)\\\\\Rightarrow Q=0+9xy^2-6x^2y+5x^3\\\\\Rightarrow Q=9xy^2-6x^2y+5x^3.

Thus, the required additive inverse of the given polynomial is 9xy^2-6x^2y+5x^3.

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