Answer:
the solutions are 13 and -13
Step-by-step explanation:
13 x 13= 169
-13 x -13=169
a negative times a negative equals a positive
300 dollars, 15x20 because they count any fraction as a foot, so is like you are going to buy 20 foot of carpet.
Answer:
the perimeter is 36
Step-by-step explanation:
Answer:
2x^2-4x-6
Step-by-step explanation:
I don't know what kind of math this is, but simply add up all of the like-terms.
There are 2 +x^2 --> 2x^2
There are 4 -x --> -4x
There are 6 - --> -6