Answer:
6x³+3x-6
Step-by-step explanation:
To add the polynomials, combine like terms:
4x³+2x³-2x+5x-9+3
4x³+2x³ = 6x³;
-2x+5x = 3x;
-9+3 = -6
This gives us
6x³+3x-6
The sum of the polynomials (4x³ − 2x − 9) + (2x³ + 5x + 3) will be 6x³+3x-6.
A cubic polynomial is a sort of polynomial that is based on the variable's largest exponent, or degree, in mathematical terms. As a result, a cubic polynomial is one in which the degree or maximum power of the variable is 3.
An algebraic expression having variables, constants, and exponents that are whole numbers is called a polynomial.
The sum of the polynomials will be calculated as below:-
Sum = (4x³ − 2x − 9) + (2x³ + 5x + 3)
To add the polynomials, combine like terms:
Sum = 4x³+2x³-2x+5x-9+3
Sum of variables with degree 3 = 4x³+2x³ = 6x³;
Sum of variables with degree 1 = -2x+5x = 3x;
Sum of constant terms = -9+3 = -6
The sum of the total expression will be:-
Sum = 6x³+3x-6
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