SOLUTION: 1) Using the quadratic equation x2 - 4x - 5 = 0, perform the following tasks:
a) Solve by factoring.
b) Solve by completing the square.
c) Solve by using the quadratic form
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Question 51296: 1) Using the quadratic equation x2 - 4x - 5 = 0, perform the following tasks:
a) Solve by factoring.
b) Solve by completing the square.
c) Solve by using the quadratic formula.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(a)
(b)
To complete the square, divide the coefficient
of x by 2 and square the result. Use this as the constant term
You must add it to the other side also to keep the equation
balenced
Take the square root of both sides
Note that there are both negative and positive roots
(c)
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