Answer:
Then it would be 4n squared + 21
Step-by-step explanation:
(2n - 7)^2
both 4n^2 and 49 are perfect squares so take their square roots and get 2n and 7
|–2| |5| |–8| |11| |–12|
-3 1/5 < - 3 7/10
The length of side A in centimeters is 6cm
D. 6