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DerKrebs [107]
3 years ago
6

If using the method of completing the square to solve the quadratic equation

Mathematics
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

x=-1+\sqrt{15}i,\:x=-1-\sqrt{15}i

Step-by-step explanation:

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WILL GIVE BRAINLIEST!!
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Step-by-step explanation:

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Four more than the product of a number and 3 equals 7.
san4es73 [151]

The phrase you typed can be written in mathematical form using a replacement of "a number" with the letter "x" (for our unknown).

So we can translate in mathematical form as shown below:

"<em>four more than the product of a number and 3 equals 7</em>"

x * 3 + 4 = 7

and of course we can solve this equation by operating with thenumbers so as to isolate the unknown "x"on one side of the equal sign:

Subtract 4 from both sides:

x * 3 = 7 - 4

x * 3 = 3

Divide both sides by 3 (so as to eliminate the factor 3 multiplying x):

x = 3 / 3

x = 1

And our answer is that the unknown number is 1 (one).

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2 years ago
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Answer:

|x-5|=13

Step-by-step explanation:

I think this is right

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3 years ago
Karl read 3 times as many books as martina.how many books did karl read
Semenov [28]

Answer:

Step-by-step explanation: multiply the number of books Martina read 3 times.

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