2.2 Homework Problems: Algebraic Expression

1. In the group of terms below pick out the like variables and fill in the table

2.4, 6x², 5x2y, ⅜, ⅓x², – 3.5y, πx², 5y², – x², 10.2 x²y, 3x, 6.8 x², – 9y, – ¾x²y, 1.5xy

2. Simplify the expression by combining like terms

a.  [latex]2n^2-6n+3-\ 4n^2+10n-8[/latex]

b.  [latex]\frac{x-5}{6}-x+2[/latex]

3. Simplify the expression by combining like terms and then evaluate the simplified expression for x = 3 and y = -2

a.  3(y − 1) + 2(y + 2) = ______________________________

b. 5x + xy² – 2xy² + 3x + 8 = ______________________________

c. 3x – 4y− 2[x + 5(y − 3)] – 2y + x = ______________________________

Unit 2.2 Homework Printable Copy