Solving Quadratic Equations
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Solve 2x² - 3x + 2 = 0.
no real solution
Solve x² - 4 = - 10
no real solution
To solve a quadratic equation either by factoring or by using the quadratic formula, first make sure the equation is in _____ _____.
standard form
Solve 2x² + 8x + 6 = 0.
x = - 1 or x = - 3
Solve x² - x = 6.
x = - 2 or x = 3
Solve x² + 6x = - 5.
x = - 5 or x = - 1
Solve x² = 225.
x = -15 or x = 15. This answer can also be written as x = ±15.
Solve 3x² - 33x = 0.
x = 0 or x = 11
Solve 2x² + 3x - 5 = 0.
x = 1 or x = -2.5
Solve x² - 4 = 0
x = 2 or x = - 2. This answer can also be written as x = ±2.
Solve x² - 5x = - 6.
x = 2 or x = 3
Solve 3x² - 4x - 4 = 0.
x =-2/3 or x = 2
Solve 3x² + 16x + 5 = 0.
x =-5 or x = -1/3
Solve x² - 3x - 5 = 0.
x=(3±√29) / 2
Solve 2x² - 7x - 1 = 0.
x=(7±√57) / 4
