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If 5x^2 - 20 = 0, what is the value of x?
If 5x^2 - 20 = 0, what is the value of x?
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Practice Questions
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Q1
If 5x^2 - 20 = 0, what is the value of x?
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4
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Add 20 to both sides: 5x^2 = 20. Divide by 5: x^2 = 4. Thus, x = ±2.
Questions & Step-by-step Solutions
1 item
Q
Q: If 5x^2 - 20 = 0, what is the value of x?
Solution:
Add 20 to both sides: 5x^2 = 20. Divide by 5: x^2 = 4. Thus, x = ±2.
Steps: 4
Show Steps
Step 1: Start with the equation 5x^2 - 20 = 0.
Step 2: Add 20 to both sides of the equation to get 5x^2 = 20.
Step 3: Divide both sides of the equation by 5 to isolate x^2. This gives you x^2 = 4.
Step 4: Take the square root of both sides to find x. This means x = ±2.
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