Identify the following as an expression or an equation.(4 points)

Question

Expression Equation
24x3=18

7x+3=1

44⋅−2x

2x2+3x+5

Answer 1

To identify the items as expressions or equations, we look for the presence of an equality sign (=). An equation contains an equality sign, whereas an expression does not.

1. 24x³ = 18 - This is an Equation because it has an equality sign.

2. 7x + 3 = 1 - This is also an Equation as it contains an equality sign.

3. 44⋅−2x - This is an Expression because it does not contain an equality sign.

4. 2x² + 3x + 5 - This is an Expression as well, since there is no equality sign present.

In summary:

• Equations: 24x³ = 18, 7x + 3 = 1
• Expressions: 44⋅−2x, 2x² + 3x + 5