Answer:
x=24
Step-by-step explanation:
Answer:
difference of squares
Step-by-step explanation:
a^2 - b^2 = (a-b)(a+b)
This is the definition of the difference of squares
Answer:
5 lawns is the answer don't forget to mark as brainliest!
Answer:
A dashed line
Step-by-step explanation:
Because it is just a less than sign but if it was a less than or equal to it would be a solid line.
Hope That Helped :)
You can make some algebraic equations and solve it.
The first would be:

The second would be

You can then rearrange the second into

And subsitute it into the first like so:

After that, distribute the y into the parantheses.

Subtract the 21 on both sides and multiply by -1 on both sides:

You then can factor it into:

With Zero Product Property, we can determine y to be either -3 and 7. Since the variables are interchangable, you can say the same about x, just that whatever x is, y must be the other value.
Thus, the answer is 7 and -3.