A card game has 50 cards. After dealing 7 cards to each player, Leonard has 15 cards left. How many players, x, are playing the card game?

In terms of x, find an expression that represents the area of the shaded region. the outer square has side lengths of (x+5) and the inner square has side lengths of (x-2), as shown. area: a1 x + a2 square units submit