how to factor a trinomial
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Prepare a tutorial on how to factor a trinomial. I will need 3 examples so I can use this to assist with another assignment.
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This job demonstrates how to factor a trinomial.
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Example1: Consider the trinomial x2 - 4x - 5
First we try to write the constant term -5 as product of two numbers. We have the choices 1, -5 or -1, 5. We chose that pair of numbers whose sum gives us -4.
The obvious choice is 1, -5.
Hence we write the given trinomial as x2 - 5x+x - 5
Now, take x common from the first two terms. This gives us x(x-5)+1(x - 5). Now we see that (x-5) is common in both the terms. So, by taking (x-5) common ...
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