What is the distance between (4,2) and (-2,0) pythagorean therom

    sqrt(40)

Step-by-step explanation:

The distance between two points can be found using

d = sqrt( (y2-y1)^2 + (x2-x1)^2 )

   sqrt( (0-2)^2 + (-2-4)^2 )

   sqrt( (-2)^2 + (-6)^2 )

    sqrt( 4 + 36)

    sqrt(40)

2sqrt(10)

Step-by-step explanation:

sqrt[(0-2)² + (-2-4)²]

sqrt(4 + 36)

sqrt(40)

2sqrt(10)

Where,

sqrt: square root

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb