Final answer to the problem
Step-by-step Solution
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Multiply the single term $-2$ by each term of the polynomial $\left(a+9\right)$
Learn how to solve special products problems step by step online.
$\left(a+9\right)^2-2a-18$
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 the expression \left(a+9\right)^2 using the square of a binomial. Take the square of the first term: a. Twice (2) the product of the two terms: a and 9.