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If 4x^2 - 16 = 0, what is the value of x?
Practice Questions
Q1
If 4x^2 - 16 = 0, what is the value of x?
x = 2
x = -2
x = 4
x = -4
Questions & Step-by-Step Solutions
If 4x^2 - 16 = 0, what is the value of x?
Correct Answer: ±2
Steps
Concepts
Step 1: Start with the equation 4x^2 - 16 = 0.
Step 2: Add 16 to both sides of the equation to isolate the term with x. This gives you 4x^2 = 16.
Step 3: Now, divide both sides of the equation by 4 to simplify. This results in x^2 = 4.
Step 4: To find the value of x, take the square root of both sides. This gives you x = ±2.
Quadratic Equations
– The question tests the ability to solve a basic quadratic equation by isolating the variable.
Factoring and Square Roots
– The solution involves recognizing perfect squares and applying the square root principle.
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