The sum of the polynomial is equal to [tex]3x^2 + 6x + 4[/tex]
We have given that the polynomials,
[tex]A. 2x^2 - 3\\B. 6x + 7 + x^2[/tex]
A polynomial is a sum of some powers of a certain variable, with some coefficient to multiply each power. Summing two polynomials simply means to sum the coefficients of the same powers, if this situations occur.
Therefore we are adding the both polynomial so we get,
[tex]= 6x + 7 + x^2 + 2x^2 - 3\\= 3x^2 + 6x + 4[/tex]
Therefore option B is correct.
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