Which are the solutions of the quadratic equation? x2 = –5x – 3
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Answered by
1
2x = -5x - 3
7x = -3
x = -3/7
7x = -3
x = -3/7
Answered by
0
Solve using quadratic formula or completing the square since the equation is not factorable.
Completing the square:
x² + 5x + 3 = 0
x² + 5x + (b/2)² = -3 + (b/2)²
x² + 5x + (5/2)² = -3 + (5/2)²
(x + 5/2)² = -12/4 + 25/4
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