Which equation is equivalent to square root x^2+81 =x+10

  x² +81 = x² +20x +100

Step-by-step explanation:

Square both sides of the original equation:

  (√(x² +81))² = (x +10)²

  x² +81 = x² +20x +100

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)