Respuesta :
Answer:
- x = 2 & - 2
Step-by-step explanation:
We have to find the value of x from the given equation.
- x²-4=0 is a quadratic equation, so it will have two values.
Step: Write the equation in simplest form.
- x²-4=0
Step: Solve the problem by spiltting method.
- x² - 4 = 0
- x² - (2)² = 0
Step: Solve the problem with using algebraic formula.
- x² - 2² = 0
- (x - 2)(x + 2) = 0
Step : We have used a²-b² to solve the problem.
- (x - 2)(x + 2) = 0
- (x - 2)(x + 2) = 0
- (x - 2)=0 or (x + 2) = 0
- x = 2 & - 2
Therefore, the possible values of x are 2 & - 2.
Answer:
Step-by-step explanation:
X²-4=0
x² = 4
x =√4 or x = - √4
x = 2 or x = -2