So the integral of 2 is 2x + c, where c is a constant. A "S" shaped symbol is used to mean the integral of, and dx is written at the end of the terms to be integrated, meaning "with respect to x". This is the same "dx" that appears in dy/dx
To carry out integration, it is important to know the general power rule. It is the exact opposite of the power rule for differentiation. When we take the integral of the function, we first add 1 to the exponent, and then divide the term by the sum of the exponent and 1
