Respuesta :
Polynomials are mathematical expressions involving variables raised with non-negative integers and coefficients. The sum of the two given polynomials is -11x² + 4x + 14
What is a polynomial?
Polynomials are mathematical expressions involving variables raised with non-negative integers and coefficients(constants who are in multiplication with those variables) and constants with only operations of addition, subtraction, multiplication, and non-negative exponentiation of variables involved.
Example:
x^2 + 3x + 5
is a polynomial.
The sum of the two given polynomials will be,
Sum = (9 - 3x²) + (-8x² + 4x + 5)
= 9 - 3x² - 8x² + 4x + 5
= 9 - 11x² + 4x + 5
= -11x² + 4x + 14
Hence, the sum of the two given polynomials is -11x² + 4x + 14.
Learn more about Polynomials:
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