X=7.1cm
The solution is in the attached file
You will have to make the fraction a decimal first by dividing the top number by the bottom number then divide if your other number is already a decimal/whole number
(v-4t)(v+nt)
=v^2+vnt-4tv-4nt^2
Answer: 6, -6
Step-by-step explanation:
If Ann is at 0, Ben will be four units away from her which could be 4 or -4 so since Carl will be 2 units away from Ben, he the only possible locations are 6, or -6
