7x² – 21x
use distributive property

Step-by-step explanation:

  Use distributive property   7x² – 21x  : 7x(x  -3)

Step-by-step explanation:

7x² – 21x = 7* x * x - 7*x * 3

                =7x (x-3)

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this