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Find the roots of the equation x^2 + 4x + 4 = 0.
Find the roots of the equation x^2 + 4x + 4 = 0.
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Q1
Find the roots of the equation x^2 + 4x + 4 = 0.
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The equation factors to (x + 2)^2 = 0, giving a double root x = -2.
Questions & Step-by-step Solutions
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Q
Q: Find the roots of the equation x^2 + 4x + 4 = 0.
Solution:
The equation factors to (x + 2)^2 = 0, giving a double root x = -2.
Steps: 8
Show Steps
Step 1: Start with the equation x^2 + 4x + 4 = 0.
Step 2: Look for two numbers that multiply to 4 (the last number) and add to 4 (the middle number).
Step 3: The numbers 2 and 2 work because 2 * 2 = 4 and 2 + 2 = 4.
Step 4: Rewrite the equation using these numbers: (x + 2)(x + 2) = 0.
Step 5: This can be simplified to (x + 2)^2 = 0.
Step 6: To find the roots, set (x + 2) = 0.
Step 7: Solve for x by subtracting 2 from both sides: x = -2.
Step 8: Since it is (x + 2)^2, this means x = -2 is a double root.
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