polynomial means more than 1 term when all like terms are combined terms are seperated by plus or minus symbols you can't combine placeholders and numbers
y is 1 term, not poly 4x^3+y is 2 term, poly 2+s is 2 term, poly
answer is 4x^3+y and 2+s
cubic means highest power of the placeholder is 3 quadratic means highest power of placeholder is 2
