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yanalaym [24]
2 years ago
14

(4-x)/(x^2-5x+4)+(2)/(x-1)=1 show all steps please!!

Mathematics
1 answer:
Sophie [7]2 years ago
3 0

Answer:

x = 2, 4

Step-by-step explanation:

Given :

\frac{4-x}{x^{2} -5x+4} + \frac{2}{x-1} =1

=============================================================

Factorize the denominator of the first term :

⇒ x² - 5x + 4

⇒ x² - x - 4x + 4

⇒ x(x - 1) - 4(x - 1)

⇒ (x - 4)(x - 1)

============================================================

Hence, the equation now is :

\frac{4-x}{(x-1)(x-4)} + \frac{2}{x-1} =1

============================================================

Multiply the second term by (x - 4) in the numerator and denominator :

\frac{4-x}{(x-1)(x-4)} + \frac{2(x-4)}{x-1(x-4)} =1

============================================================

Combine the numerator of both terms and bring the denominator to the other side :

\frac{4-x+2(x-4)}{(x-1)(x-4)} = 1

4 - x+2x-8 = x^{2} - 5x + 4

x - 4 = x^{2} - 5x + 4

x^{2}  -5x-x+4+4=0

x^{2} -6x+8=0

(x-4)(x-2)=0

x = 2, 4

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