Identify Like Terms: Identify the like terms in both polynomials.(6x2+x+4)+(7x+3) can be rearranged as (6x2)+(x+7x)+(4+3).
Combine Like Terms: Combine the like terms.The x terms (x+7x) combine to give 8x, and the constant terms (4+3) combine to give 7.So, (6x2)+(x+7x)+(4+3) becomes 6x2+8x+7.