ggjijjjk ggjijjjk
  • 24-01-2017
  • Mathematics
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Answer this please I don't understand

Answer this please I dont understand class=

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amaan09javed
amaan09javed amaan09javed
  • 24-01-2017
square and transport
x+1=x2 + 25 - 10x
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merxinda
merxinda merxinda
  • 24-01-2017
Square root of (x+1)=x-5

So in order to get rid of square root, you need to square to both side as the following:

Square root of (x+1)^2 =(x-5)^2

So (x-5)^2 turning to x^2-10x+25 and square root of(x+1)^2 turning to x+1.

Rewrite the equation,

x+1 = x^2-10x+25
-x+1 -x+1
0=x^2-11x+26, which also can write it as x^2-11x+26

Then use quadratic formula to find x. After that, you should get the answer like the following:

x=(11+(17^(1/2)))/2 and

x=(11-(17^(1/2)))/2


Answer Link

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