Answer:
the answer is 23 on edguniity
Step-by-step explanation:
Answer:

Step-by-step explanation:
The formula for area of a rectange is lw, where l is length and w is width. Since x-4 and 5x+2 are the sides, we can multiply them together to give us the area. We do (x-4)(5x+2). We use the FOIL method (First Outside Inside Last) and get 5x^2-18x-8.
Remember that squaring something is just multiplying that number by itself.





Step-by-step explanation:
4 the greatest common factor is four