Final Answer
Step-by-step Solution
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Multiply the single term $-2$ by each term of the polynomial $\left(a+9\right)$
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$\left(a+9\right)^2-2a-18$
Learn how to solve special products problems step by step online. Expand the expression (a+9)^2-2(a+9). Multiply the single term -2 by each term of the polynomial \left(a+9\right). Expand \left(a+9\right)^2. Subtract the values 81 and -18. Combining like terms 18a and -2a.