(4*4)+(r*r)=(r*r)*2*2

Solution for (4*4)+(r*r)=(r*r)*2*2 equation:

Simplifying
(4 * 4) + (r * r) = (r * r) * 2 * 2

Multiply 4 * 4
(16) + (r * r) = (r * r) * 2 * 2
16 + (r * r) = (r * r) * 2 * 2

Multiply r * r
16 + (r2) = (r * r) * 2 * 2
16 + r2 = (r * r) * 2 * 2

Multiply r * r
16 + r2 = (r2) * 2 * 2

Reorder the terms for easier multiplication:
16 + r2 = 2 * 2r2

Multiply 2 * 2
16 + r2 = 4r2

Solving
16 + r2 = 4r2

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-4r2' to each side of the equation.
16 + r2 + -4r2 = 4r2 + -4r2

Combine like terms: r2 + -4r2 = -3r2
16 + -3r2 = 4r2 + -4r2

Combine like terms: 4r2 + -4r2 = 0
16 + -3r2 = 0

Add '-16' to each side of the equation.
16 + -16 + -3r2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -3r2 = 0 + -16
-3r2 = 0 + -16

Combine like terms: 0 + -16 = -16
-3r2 = -16

Divide each side by '-3'.
r2 = 5.333333333

Simplifying
r2 = 5.333333333

Take the square root of each side:
r = {-2.309401077, 2.309401077}