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Earn +20 ptsQ: Can a quadratic equation equal zero?
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Can you solve 3x2-x equals -1?
Set the equation equal to zero. 3x2 - x = -1 3x2 - x + 1 = 0 The equation is quadratic, but can not be factored. Use the quadratic equation.
If the discriminant of an equation is 0?
If the discriminant of a quadratic equation is zero then it has two identical roots.
If the discriminant of a quadratic equation equals zero what is true of the equation?
It has one real solution.
What are 3 outcomes for the discriminant?
If the discriminant of a quadratic equation is zero then it has equal roots. If the discriminant is greater than zero then there are two different roots. If the discriminant is less than zero then there are no real roots.
Why can't an equal 0 in a quadratic equation?
a is the coefficient of the x2 term. If is a = 0, then it is no longer a quadratic - it is just a linear equation, and the quadratic formula will not work to solve it.
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