To make a rope that is x^2 units long requires that 4 strands be twisted together. Each strands be twisted together. Each strand must be x^2 + 6x units in length. a. What is the total length of 4 strands?
b. write a rational expression for the length of the rope divided by the total length of the strands.
c. simplify the rational expression

it happens during combustion and impacts the environment because the plants and trees take in that and it can cause them to die.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct