Question

factorize x^2 - 5x +4
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Answer 1

Answer:

(x-1)(x-4)

Step-by-step explanation:

factors of four that add up to negative five

Answer 2

Answer: It should be ( x - 4) ( x - 1)

Step-by-step explanation:

-Solve:

$x^2 - 5x +4$

$a+b = -5$

$ab=1$ × $4 = 4$

$-1,-4\\-2,-2$

$-1-4=-5\\-2-2=-4$

$a=-4\\b=-1$

$(x^2-4x)+(-x+4)$

$x(x-4)-(x-4)$

Result:

$(x-4)(x-1)$