1- 4x^2 factorization using the formula: a^2 - b^2 = (a + b) (a - b)
is the (1 + 2x) (1 - 2x)
is it in the right order though?

Yes

Step-by-step explanation:

Factorise using the difference of squares, that is

a² - b² = (a + b)(a - b)

Given

1 - 4x², then a = 1 and b = 2x

= (1 + 2x)(1 - 2x) = (1 - 2x)(1 + 2x)

Since multiplication is commutative order is not important, that is

3 × 4 = 4 × 3

1 - 4x^2

=(1)^2 - (2x)^2

=(1-2x) (1+2x)

it could also be written as (1 + 2x) (1 - 2x)

Step-by-step explanation:

the order doesn't matter because it's a multiplication

180 square centimeters

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.