Question

Determine if the following expressions are equivalent by first finding the value of each expression (show your work). State which (if any) are equivalent expressions and explain how you know.
a. 2² ∙ 3² − 2³− 1
b. 2²∙(3²−2³)−1
c. (2 ∙ 3)²−2³−1
pls help i will mark as brainlist please help quick

Answer 1

Step-by-step explanation:

1. Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them). For example, the expressions y + y + y and 3y are equivalent because they name the same number regardless of which number y stands for.

:

Step-by-step explanation:

Now in option 5.

Given ,

3x - 14 + 4x.

= 7x - 14.

So, we can see that option 4 and 5 are equivalent.

16-Dec-2020