Answer:

Step-by-step explanation:
The given equation is

Subtract 2 from both sides and factor by grouping to get:


By the zero product principle:


When


This implies

When

We have

hence x is not defined for all real numbers
No because if it is a square all the sides are 7m long so a 9m plank will not fit. Hope this helps.
Answer:820
Step-by-step explanation:
Since he got $500 the first week multiply 80x4 which is 320+500 is 820$
The dimension is 2d because it will be (a,ax)
you would need to divide 90 by 3 because that is how many there are in each row.
you will get 30
then you need to multiply 30 by 2 becanse that is how many are in the rows on the left.
you will get 60,
so there are 60 seats on the left.