Answer:
Step-by-step explanation:
Given : Expression 
To find : Factor the expression ?
Solution :
The given expression is a quadratic function
the solution is 
On comparing with general form,
a=16, b=0, c=49
Substitute in the formula,
Factors are
Therefore,
Pi aka 3.14 is a very commonly know irrational number
X = integer one
y = integer 2
x = 12y + 4
x * y = 5896
Solve the system of equations
9) Because the total number of pencils is 180 and you will use them up in 30 days, the equation will have to equal 0 total pencils when 30 is substituted in for the time factor, or x. This already takes our choice 3 because it doesn’t meet this criteria.
The answer to how many pencils in 20 days could be answered by plugging in 20 for x. Choice 4 cannot work because it results in a negative number of pencils. Choices 1 and 2 use the same equation, so by plugging in 20 it is clear choice 2 is the correct answer.
10) A line parallel to the go en equation would have the same slope, -3, which means choices 1 and 4 are out. Plug in (-2,5) into both choices 2 and 3. Plugging -2 into x in choice 2 gives -5, and in choice 3 gives 5 for the y value. Therefore choice 3 is correct.