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elena-s [515]
9 months ago
6

Solve

+ 8x - 1 = 0" alt="{2x}^{2} + 8x - 1 = 0" align="absmiddle" class="latex-formula">by completing the square
​
Mathematics
1 answer:
kramer9 months ago
4 0

Answer:

x= ± 3\sqrt{2} /2 +2

Step-by-step explanation:

Use the formula ( b/2) ^2 in order to create a new term. Solve for x by using this term to complete the square.

x= ± 3\sqrt{2} /2 +2

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Put a check by all the prime numbers.
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Answer: 3, 5, and 11

Step-by-step explanation: a prime number is a number greater than 1 that is not a product of two smaller natural numbers.

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3 years ago
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Hello, I need help. Just answers
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Me too maybe b I just need some answers
8 0
1 year ago
NEED HELP ASAP
VARVARA [1.3K]

When solving an equation with an absolute value term, you make two separate equations ans solve for x:

Equation 1: |4x-3|-5 = 4

1st add 5 to both sides:

|4x-3| = 9

Remove the absolute value term and make two equations:

4x-3 = 9 and 4x - 3 = -9

Solving for x you get X = 3 and x = -1.5

When you replace x with those values in the original equation the statement is true so those are two solutions.

Do the same thing for equation 2:

|2x+3| +8 = 3

Subtract 8 from both sides:

|2x+3| = -5

Remove the absolute value term and make two equations:

2x +3 = -5

2x+3 = 5

Solving for x you get -1 and 4, but when you replace x in the original equation with those values, the statement is false, so there are no solutions.

The answer is:

C. The solutions to equation 1 are x = 3, −1.5, and equation 2 has no solution.

3 0
3 years ago
BRAINY
likoan [24]

Answer:

correct answer is four sixths

Step-by-step explanation:

you can simplify 2/6 to 1/3 and then it would just be 1/3 plus 1/3. This is 2/3 or 4/6! Hope this helps :)

5 0
2 years ago
Need help with a math probelm gvie 5 star if do
arsen [322]

Answer:

28 units^{3}

Step-by-step explanation:

21/2 * 8/3 = 28

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