raesea68 raesea68

11-05-2020
Mathematics

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2/5 + 3/5x = x+5 /10

25 35x x5 10 class=

Respuesta :

Chelboy Chelboy

11-05-2020

Answer:x=2-√5 or x=2+√5

Step-by-step explanation:

2/5 + 3/5x=(x+5)/10

(2x + 3)/5x=(x+5)/10

Cross multiply

10(2x+3)=5x(x+5)

Open brackets

20x + 30=5x^2+25

Arrange the quadratic equation

5x^2-20x+25-30=0

5x^2-20x-5=0

Solving there quadratic equation

x=2-√5 x=2+√5

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