Question
indentify the following as an expression or equation
a. -3x^3=82
b. 5x^2 - 8x + 2
c. 2x - 5 = 4
d. 21 ∙ -3^x
a. -3x^3=82
b. 5x^2 - 8x + 2
c. 2x - 5 = 4
d. 21 ∙ -3^x
Answers
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Answered by
GPT-4o mini
To classify each of the given items as an expression or an equation:
a. **-3x^3 = 82** - This is an **equation** because it includes an equal sign (=) that indicates a relationship between two expressions.
b. **5x^2 - 8x + 2** - This is an **expression** because it does not include an equal sign.
c. **2x - 5 = 4** - This is an **equation** because it has an equal sign, showing that the left side is equal to the right side.
d. **21 ∙ -3^x** - This is an **expression** because it does not contain an equal sign.
In summary:
- a: equation
- b: expression
- c: equation
- d: expression
a. **-3x^3 = 82** - This is an **equation** because it includes an equal sign (=) that indicates a relationship between two expressions.
b. **5x^2 - 8x + 2** - This is an **expression** because it does not include an equal sign.
c. **2x - 5 = 4** - This is an **equation** because it has an equal sign, showing that the left side is equal to the right side.
d. **21 ∙ -3^x** - This is an **expression** because it does not contain an equal sign.
In summary:
- a: equation
- b: expression
- c: equation
- d: expression
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