Add the like terms:
8x2+x2=9x2
-9y2-3y2=-12y2
-4x-7x=-11x
Combine each term:
9x2-12y2-11x
Hope this helps!!
The sum of the polynomial will be,9x²-6y²-11x. Option B is correct.
A polynomial is an algebraic statement made up of variables and coefficients. Variables are sometimes known as unknowns.
We can use arithmetic operations like addition, subtraction, and so on. However, the variable is not divisible.
⇒(8x²-9y²-4x)+(x²-3y²–7x)
⇒9x²-6y²-11x
The sum of the polynomial will be,9x²-6y²-11x.
Hence, option B is correct.
To learn more about polynomials, refer:
https://brainly.com/question/17822016
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