Answer:
Step-by-step explanation: The answer is -3.
Given equation is, 4x^2 + 12x = 0
Dividing the equation by 4, we will get,
x^2 + 3x = 0
x^2 = -3x
Dividing the equation by x, we will get,
x = -3
x=0,-3
Explanation:
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