Answer:
-16n-41
Step-by-step explanation:
140
25+105+90=220
360-220=140
#3 is 1920 cubic inches
#4 i cant see the shape
Explanation:
the height is 1 inch so we can disregard that.
58 squared minus 38 squared is 1920 because if it was a square it would be side length 58 but we have to subtract 20 to find what is missing.
No it is NOT possible - that would mean the final angle would also have to be ninety degrees making it a square or rectangle. :)
1. Factor out the greatest common factor (GCF). (There will not always be one).
2. Count the number of terms.
3. Check to be sure each factor is prime, if not, repeat 1-3.
4. Check by multiplying the factors out to see if you get the original polynomial.