Recognize the integral: Recognize the integral to be solved.We need to find the integral of (2x+6)5 with respect to x.
Apply power rule: Apply the power rule for integration.The power rule for integration states that the integral of xn with respect to x is (x(n+1))/(n+1)+C, where C is the constant of integration. However, since we have a linear term (2x+6) instead of just x, we need to adjust the rule accordingly.
Use substitution: Use substitution to simplify the integral.Let u=2x+6, then du=2dx. This means that dx=2du.
Rewrite in terms of u: Rewrite the integral in terms of u. The integral becomes 21×∫u5du, since we have to divide by 2 to account for the substitution of dx.
Apply power rule for u: Apply the power rule for integration to the integral in terms of u. Using the power rule, we get (21)×(6u6)+C.
Substitute back x: Substitute back the original variable x into the integral.Replace u with 2x+6 to get (1/2)×((2x+6)6/6)+C.
Simplify expression: Simplify the expression.We can simplify the expression to (121)×(2x+6)6+C.