Solving the equation 
using completing square method we get 
So, Option A is correct.
Step-by-step explanation:
We need to solve the equation using completing square method.
Solving using completing square method
For completing the square we need to make formula a^2-2ab+b^2=(a-b)^2
Divide the equations by 2
Adding and subtracting (3)^2 on both sides.
Solving the equation using completing square method we get
So, Option A is correct.
Keywords: Solving Quadratic Equation
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3. 20's prime factorization is 2,2,5
Answer: Associative property
Explanation: The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product. Example: 5 × 4 × 2 5 \times 4 \times 2 5×4×2.
As the input is increased by 1.
4 / (1/4) = 4 * 4 = 16
64/4 = 16
1024/64 = 16
So we can see the output factor is increased by a factor of 16.
Hope this helps.
