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vladimir1956 [14]
3 years ago
8

Solve: Vx+1= Vx+6 -1

Mathematics
1 answer:
swat323 years ago
3 0

Answer:

x + 1 = x +7-2\sqrt{x+6}

Step-by-step explanation:

\sqrt{x+1}= \sqrt{x+6}-1

Squaring both sides of the equation would give (\sqrt{x+1} )^{2} =(\sqrt{x+6}-1 )^{2} which then simplifies to x + 1 = x -2\sqrt{x+6}+7

We can then subtract 7 from both sides to get x-6=x-2\sqrt{x+6}

Then we can subtract x from both sides, which cancel out and we get -6 =-2\sqrt{x+6}

Then we need to divide both sides by -2 to get 3=\sqrt{x+6}

Then we need to square both sides (3)^{2} =(\sqrt{x+6} )^{2} to get rid of the square root to get 9 = x + 6

Then finally subtracting 6 from both sides we get 3 = x

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I hope this helps you!
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