Factor the expression completely over the complex numbers.
y^4+14y^2+49

(y² + 7)(y² + 7)

Step-by-step explanation:

Check: Use the FOIL method. FOIL = First, Outside, Inside, Last, and is the order in which you multiply:

(y²)(y²) = y⁴

(y²)(7) = 7y²

(7)(y²) = 7y²

(7)(7) = 49

Simplify. Combine like terms:

y⁴ + (7y² + 7y²) + 49 = y⁴ + (14y²) + 49

Your

(y² + 7)(y² + 7)

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2