Question

find the sum or difference. write your answer in standard form.\\((2c^2 + 6c + 4) + (5c^2 - 7)\\)

Explanation:

Step1: Eliminar paréntesis

$2c^2 + 6c + 4 + 5c^2 - 7$

Step2: Agrupar términos semejantes

$(2c^2 + 5c^2) + 6c + (4 - 7)$

Step3: Sumar/restar términos semejantes

$7c^2 + 6c - 3$

Answer:

$7c^2 + 6c - 3$