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3 cards from this section. Quick, good the night before a test.
Solve x² + 4x + 4 = 0 by completing the square.
Start by rewriting the equation and moving the constant to the right.
Complete the square for the equation x² + 8x + 12 = 0.
Focus on forming a perfect square trinomial.
What is the first step in completing the square?
Think about what needs to stay on one side.
Completing the square is used to find what?
Consider the ultimate aim of solving the quadratic.
Using completing the square, find the solutions for the equation 4x² + 8x + 1 = 0.
Normalize the x² coefficient first!
Formulate a quadratic equation from the roots of 2 and -3 using the completing the square method.
Remember how to construct from given roots!
2 more questions in this section. Enroll free to practise them all.
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