The area of a square park is $16x^2 + 8x + 1$. What is the length of the park?
Answer & explanation
Correct answer: option 2
The area of park = 16x2 + 8x + 1
16x2 + 8x + 1 = 0
= (4x)2 + 2 × 4x + (1)2
= (4x + 1)2
Now, Area of square = (Side)2
= Length of park = (4x + 1)