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ohaa [14]
3 years ago
13

X2 - 5x + 4 What is equivalent to this expression?

Mathematics
2 answers:
drek231 [11]3 years ago
6 0

Answer

(x-1) (x-4)

Step-by-step explanation:

I did this not long ago in class so that's the answer

nadya68 [22]3 years ago
5 0

If you want to factor, then you need to find two numbers that multiply to 4 and add to -5. Those two numbers are -4 and -1

-4 times -1 = 4

-4 plus -1 = -5

This means x^2-5x+4 factors to (x-4)(x-1). The order of the factors does not matter, as we can multiply in any order, so it is equivalent to (x-1)(x-4)

You can use the FOIL rule or the box method to expand out (x-4)(x-1) to get x^2-4x-1x+4 = x^2-5x+4 again. This confirms we have the proper factorization.

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