The Fooling ecuation

Calculus Level 2

What is the value of x x in the ecuation: x 2 − 4 x + 4 x 2 − 12 x + 20 = 0 \frac{x^{2} - 4x +4}{x^{2} - 12x + 20} = 0

10 The ecuation has no solution 2

Hjalmar Orellana Soto by Hjalmar Orellana Soto , 24, Chile

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1 solution

Ángela Flores
Feb 27, 2015

We can write the expression as (x-2)^2/(x-2)(x-10) and it's easy to see that it will be 0 when (x-2)^2=0, but this makes denominator 0, then the equation has no solution.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

why ? the answer is 2, (x-2)/(x-10)=0 , if x=2, so (0)/(-8)=0

Ridho Kaspari - 6 years, 3 months ago

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value the expression for x = 2 x = 2 and realize about

Hjalmar Orellana Soto - 6 years, 3 months ago

Should the problem be in 'Calculus'?

Vincent Miller Moral - 5 years, 9 months ago

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I'll let it in calculus now, could you tell me a little definition of every topic we have here, please?

Hjalmar Orellana Soto - 5 years, 9 months ago

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