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den301095 [7]
3 years ago
13

Can someone help me with my algebra class?

Mathematics
1 answer:
Lilit [14]3 years ago
3 0
Im stuck on algebra too
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Solve for the roots in simplest form by completing the square <br><br> x^2-12x+20=0
Alex17521 [72]

Answer:

x = 10 or x = 2

Step-by-step explanation:

Solve for x:

x^2 - 12 x + 20 = 0

Hint: | Solve the quadratic equation by completing the square.

Subtract 20 from both sides:

x^2 - 12 x = -20

Hint: | Take one half of the coefficient of x and square it, then add it to both sides.

Add 36 to both sides:

x^2 - 12 x + 36 = 16

Hint: | Factor the left hand side.

Write the left hand side as a square:

(x - 6)^2 = 16

Hint: | Eliminate the exponent on the left hand side.

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Hint: | Look at the first equation: Solve for x.

Add 6 to both sides:

x = 10 or x - 6 = -4

Hint: | Look at the second equation: Solve for x.

Add 6 to both sides:

Answer: x = 10 or x = 2

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3 years ago
What is an irrational number equal to 2 OR 10 that is NOT an integer? I know what irrational numbers are and all that but I want
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100pi/10pi this is irrational but reduces to 10, a rational number
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Step2247 [10]
Answer : 12.4 +b
It said the longest is two times bigger then the smallest and the longest is 6.2 and thats double
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3 years ago
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