Which statement best describes the equation (x + 5)2 + 4(x + 5) + 12 = 0?
2 answers:
Answer:
Option A is correct.
Step-by-step explanation:
We have been given an equation:
Since, the equation has degree that is highest power 2 so, it is quadratic
Therefore, option A is correct that is the equation is quadratic in the form because it can be rewritten as a quadratic equation with u substitution u = (x + 5).
Option B is incorrect because it will not give fourth degree polynomial
Option C and D are incorrect because the equation is quadratic.
You might be interested in
Note that
sin(x + y) = sin(x) cos(y) + cos(x) sin(y).
Therefore by setting x = π/2 and y = π/7, obtain
sin(π/2 + π/7) = sin(π/2)*cos(π/7) + cos(π/2)*sin(π/7)
The right side is what we want to evaluate. It is equal to
sin(π/2 + π/7) = sin (9/14)π
Answer:
sin(x + y) = sin(x) cos(y) + cos(x) sin(y).
Therefore by setting x = π/2 and y = π/7, obtain
sin(π/2 + π/7) = sin(π/2)*cos(π/7) + cos(π/2)*sin(π/7)
The right side is what we want to evaluate. It is equal to
sin(π/2 + π/7) = sin (9/14)π
Answer: