Answer:

1. c+d

2. 15 000.00 [25x^2-30x+9} PHP

Explanation:

1.

Solution:

Area= L•W {formula}

= (c²+2cd+d²)•(c+d)

= (c+d)²•(c+d)

= (c+d)³

The Minimum number= (c+d)³

————

(c+d)²

= c+d

Answer: c+d

2.

A=L^2

=[5x-3]^2;

Since no other arrangement to manipulate the value of x, we will leave our answer with variable x...

a.) How many meters of fencing materials to enclosed the square lot

- means we have to compute the distance of the square or it's PERIMETER.

P=21+2w;

since it's a square;

L=w;

P= 21+21

=41;

=4[5x-2]:

P=20x-8

b.) 1m^2= is cost PHP 15,000.00

A= 1^[cost per m^2]

Cost= 15,000.00 {5x-3]^2

= 15,000.00 [25x^2-30x+9}php... ans;

Answer: 15,000.00 [25x^2-30+9] or PHP 15,000.00[25x^2-30+9]