Equivlaent Expressions: Equivalent or Not?

Expression Pairs: Equivalent or Not? 1. a+(3-b) and (a+3)-b

• Equivalent

• Not

• None of the above

• More information needed

Expression Pairs: Equivalent or Not? 2. 2+k/5 and 10+k

• Equivalent

• Not

• More information need

• I am not sure

Expression Pairs: Equivalent or Not? 3. (a-b)^2 and a^2-b^2

• Equivalent

• Not

• I am not sure

• More information needed

Expression Pairs: Equivalent or Not? 4. 3(z+w) and 3z+3w

• Equivalent

• Not

• I am not sure

• More information needed

Expression Pairs: Equivalent or Not? 5. -a+2 and -(a+2)

• Equivalent

• Not

• I am not sure

• More information needed

Expression Pairs: Equivalent or Not? 6. 1/(x+y) and 1/x+1/y

• Equivalent

• Not

• I am not sure

• More information needed

Expression Pairs: Equivalent or Not? 7.x^2+4x^2 and 5x^2

• Equivalent

• Not equivalent

• I am not sure

• Need more information

• Equivalent

• Not equivalent

• I am not sure

• Need more information

 Expression Pairs: Equivalent or Not? 9. bc-cd and c(b-d)

• Equivalent

• Not equivalent

• I am not sure

• Need more information

• Equivalent

• Not equivalent

• I am not sure

• Need more information