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2 cards from this section. Quick, good the night before a test.
What is the standard form of a quadratic equation?
Remember, a should not be zero.
Find the roots of the equation x² - 4 = 0.
Factor the equation.
What is the standard form of a quadratic equation?
Look for the term where the highest power of x is 2.
What does a negative discriminant indicate?
Think about the implications of having no real roots.
A quadratic equation is formulated as 5x² - 20x + 15 = 0. Determine its roots using the quadratic formula.
Make use of the quadratic formula correctly.
A team plans on building a rectangular park with an area of 1500 m², where the length is three times the breadth. Create an equation to find the dimensions.
Remember to use the area formula correctly.
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