Exercise
$\left(a+5\right)\left(a+4\right)-\left(a+10\right)\left(a+2\right)$
Step-by-step Solution
Learn how to solve special products problems step by step online. Expand the expression (a+5)(a+4)-(a+10)(a+2). Simplify the product -(a+10). Multiply the single term a+4 by each term of the polynomial \left(a+5\right). Multiply the single term a by each term of the polynomial \left(a+4\right). When multiplying two powers that have the same base (a), you can add the exponents.
Expand the expression (a+5)(a+4)-(a+10)(a+2)
Final answer to the exercise
$-3a$