Algebraeasy · Past Paper
If sum of roots is 0 and product of roots is -4, the equation is:
Ax^2 - 4 = 0
Bx^2 + 4 = 0
Cx^2 - 4x = 0
Dx^2 + 4x = 0
✓ Correct Answer: A — x^2 - 4 = 0
x^2 - (sum)x + (product) = 0 => x^2 - 0x - 4 = 0 => x^2 - 4 = 0.
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