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Ipatiy [6.2K]
3 years ago
10

Solve :p (algebra)3+5

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
6 0

Answer:

8...

Step-by-step explanation:

Fantom [35]3 years ago
3 0
The answer is 8 .....
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Solving Square Roots Worksheet (x - k)^2 : Part 1
iVinArrow [24]

Answer:

1. x = +/- 2\sqrt{2} - 7

2. x = 3 +/- 2i\sqrt{3}

3. n = 2 +/- i\sqrt{2}

Step-by-step explanation:

1. Divide both sides by 2: (x + 7)^2 = 8

Square root both sides: x + 7 = +/- 2\sqrt{2}

Subtract 7 from both sides: x = +/- 2\sqrt{2} - 7

2. Square root both sides: x - 3 = \sqrt{-12}

Since there is a negative inside the radical, we need to have an imaginary number: i=\sqrt{-1} . So, \sqrt{-12} =i\sqrt{12} =2i\sqrt{3}

Add 3 to both sides: x = 3 +/- 2i\sqrt{3}

3. Divide by -5 from both sides: (n - 2)^2 = -2

Square root both sides: n - 2 = \sqrt{-2}

Again, we have to use i: n-2=\sqrt{-2} =i\sqrt{2}

Add 2 to both sides: n = 2 +/- i\sqrt{2}

Hope this helps!

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The answer is 11.35 g/mL
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Sergio039 [100]

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Maria determined that the length of her driveway from the main road is 35.25 meters.
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What number should be added to both sides of the equation to complete the square? x2 8x = 4
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You would take half of the x term...and square it
so half of 8 is 4....4^2 = 16
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