3. Each square has the area written inside and the expression that represents the area is written outside, below the box. Find the side length of each square. 289 in2 1,221 in2 961 in? 36x2 - 12x + 1 - 25x2 – 20x + 4 49x2 - 42x + 9 -

Pls! does anybody know a shortcut for answering these types of questions in the future?

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible