can someone help me with thhis problem?

write in factored form, an expression for the shaded portion of the figure.

Question

can someone help me with thhis problem?

write in factored form, an expression for the shaded portion of the figure.

anonymous · Answer

its a rectangle with a square on each side labeled x times x
on the bottom its 18 and the side is 8

anonymous · Answer

which part is shaded?

anonymous · Answer

|dw:1315252395954:dw|

anonymous · Answer

the squares are white the rest is shaded green

anonymous · Answer

-4x^2

anonymous · Answer

how do you find whats not shaded?

anonymous · Answer

area of shaded part = total area - 4 * area of each square

anonymous · Answer

in factored form:

4 (36-13x)

anonymous · Answer

is that factored ?

anonymous · Answer

yes the greatest common factor of 52 and 144 is 4  so thats as far as we can go factoring

anonymous · Answer

the teacher says its incorrect?

anonymous · Answer

ok - i'm having a bad day today - lets have another look

anonymous · Answer

sorry to hear that

anonymous · Answer

the grandkids keeping interrupting me - yes - its the wrong answer! sorry
area of shaded part = total area - 4 * area of each square

total area = 18*8 = 144
area of squares = 4x^2
area of shaded part = 144 - 4x^2
this is difference of two squares
which factored is:
(12 - 2x)(12+2x)

anonymous · Answer

maybe i should take a break!! lol

anonymous · Answer

yeah thanks for your help :)

anonymous · Answer

y w