SOLUTION: Find the number of solutions of each equation.
1) x^2 + 8 = 0
2) 2x^2 + x = 0
3) 3x^2 - 9x = -5
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Question 753258: Find the number of solutions of each equation.
1) x^2 + 8 = 0
2) 2x^2 + x = 0
3) 3x^2 - 9x = -5
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!
Any quadratic equation could have two or fewer solutions. Use the discriminant. Here is the systematic way:
DISCRIMINANT____ SOLUTIONS
positive______________2
zero________________1
negative____________0 (but there will be two imaginary or complex)
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