Question 921608



{{{a=x^4+3x^2+1}}}(degree {{{4}}}) and {{{b=4-x^4}}}(degree {{{4}}})

{{{a+b=x^4+3x^2+1+4-x^4}}}

{{{a+b=cross(x^4)+3x^2+5-cross(x^4)}}}

{{{a+b=3x^2+5}}}=> the degree of the sum of (a) and (b) is {{{2}}}