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19 May, 20:59

What is the value of x2-4x+4

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  1. 19 May, 22:57
    Unclear. What do you mean by "value of?" Perhaps you meant, "What are the factors of x^2-4x+4?" Look at the final 4. Possible factors of 4 are (-1) (-4) and (-2) (-2). Note that - 2-2 = - 4, which matches the "-4" in x^2-4x+4.

    Thus, try the following factors: (x-2) (x-2). When mult. together, x^2-4x+4 results, so these factors are the correct ones.
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