see how it do it in the picture and hope it helps you..
Step-by-step explanation:
4x2 - 25b2
We can solve it by the squares so
(2x - 5b) (2x + 5b)
2) x2 - 81
The same case is here so
(x - 9) (x + 9)
As the number of hours spent working increases, the amount of time spent on video games decreases.
Going from left to right, we see that the points are moving down. This means that the hours working are going up and the video game hours are going down.
