Question

if the distance between the points p (x, - 1) and Q( 3, 2) and 5 units then x is ______​

Answer 1

Answer:

We know that the formula for distance between two points is root over (xtwo - xone )2+(ytwo-yone)2

:. 5=root over( x-3)2+(2+1)2

25=x2+9-6x+9

x2-6x-7=o

it is a quadratic equation

by applying formula for finding roots of quadratic equation we get x=7or -1