The equality a² + b² + c² = (a + b)² is verified for c² equal to: a. c² = 0 b. c² = 1 c. c² = 2ab d. c² = ab e. c² = a + bc

Let's simplify the given equation: a² + b² + c² = (a + b)² Expand the right side: a² + b² + c² = a² + 2ab + b² Now, subtract a² and b² from both sides of the equation: c² = 2ab So, the correct answer is: c² = 2ab (option c)