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$\int\left(\left(a+9\right)^2-2\left(a+9\right)\right)da$
Learn how to solve integral calculus problems step by step online. Find the integral of (a+9)^2-2(a+9). Find the integral. Rewrite the expression \left(a+9\right)^2-2\left(a+9\right) inside the integral in factored form. Multiply the single term 7+a by each term of the polynomial \left(a+9\right). Multiply the single term a by each term of the polynomial \left(7+a\right).