1.1.4 Simplifying Algebraic Expressions - Practice
1. A chess game begins with 32 pieces on the chess board. Write an algebraic expression that represents the number of pieces on the chess board after n pieces are removed.
2. Write an algebraic expression that represents the number of hours in y days.
3. Evaluate the expression 2 qp + 5 p − 3 q for p = 3 and q = 5.
4. Evaluate the expression uv 2 + 5 uv + u 2 for u = 3 and v = 4.
5. Simplify.
6. Susan needs to buy apples and oranges to make fruit salad. She needs 15 fruits in all. Apples cost $3 per piece, and oranges cost $2 per piece. Let m represent the number of apples and r represent the number of oranges. Write an expression that represents the amount Susan spent on the fruits. Then determine the amount she spent if she bought 6 apples.
7 a 2 + 3 b + 6 a − 2 a 2
30
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