2 + 4(3+2x) = 3x + 8
2 + 12 + 8x = 3x + 8
14 - 8 = 3x - 8x
6 = -5x
x = -6/5
Answer:
all sides are 16 ft
Step-by-step explanation:
If the side length is x, the area is x²=256, hence x = √256 = 16
Answer:
23
Step-by-step explanation: You have to do 5x5 because 5^2 mans there is two fives. Then you just subtract two
5x5=25
25-2=23
Answer: The correct option is (c) 
Step-by-step explanation: We are given to solve the following quadratic equation by the method of completing the square:

Also, we are to find the constant added on both sides to form the perfect square trinomial.
We have from equation (i) that

So,

Thus, the required solution is
and the value of the constant added is 
Option (c) is correct.