Question

WILL GIVE MEDAL AND FAN!!!!!!!

A rectangular fountain has an area of (16x^2+8x+1)ft squared. The dimensions of the rectangle have the form ax+b, where a and b are whole numbers. Write an expression for the perimeter of the fountain. Then find the perimeter when x=2 feet.

Answer 1

I KNOW YOU ARE SUPPOSED TO FACTOR BUT DON'T KNOW HOW???

Answer 2

P=4(4x+1)
i think

so then 36

Answer 3

could you please show steps

Answer 4

16x^2 + 4x +4x +1
4x(4x +1)+1(4x+1)
(4x +1)^2 = area

4(4x=1) =P

Answer 5

thanks could you help with more?

Answer 6

sure

Answer 7

1 min please

Answer 8

A square tabletop has an area of (9x^2-90x+225) cm^2. The dimensions of the tabletop have the form cx-d, where c and d are whole numbers. Write an expression for the perimeter when x=25 cm.

Answer 9

one sec, i'm working it out

Answer 10

ok

Answer 11

do u get how to factor it?
by browser keeps stopping so i keep losing it

Answer 12

kind of.....

Answer 13

P = 4(9x - 45)
36x -180
36(25)-180
720 cm

Answer 14

how did you get 4(9x-45) please show steps

Answer 15

9x^2 -45x -45x + 225
9x(x-5)-45(x-5)
(9x-45)(x-5)
9(x-5)(x-5)
9(x-5)^2 = area, so one side=9(x-5)