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-Dominant- [34]
3 years ago
6

B) x⁴ + x² + 1 solve it​

Mathematics
2 answers:
LekaFEV [45]3 years ago
7 0

Answer: x⁶︎+1 or 2⁶︎

Step-by-step explanation: you add the exponents and because x technically has a 1 in front of it, you add 1+1 and end up with 2⁶︎

jasenka [17]3 years ago
3 0

Answer:

{x}^{4}  +  {x}^{2}  + 1 \\   {( {x}^{2} })^{2}  +  {x}^{2}  + 1 \\ let \:  {x}^{2}  \: be \: m \\ if \: f(m) = 0 \\  {m}^{2}  + m + 1 = 0 \\ factor \: of \: equation \:  = m +  \frac{1}{2}  \\ m =  -  \frac{1}{2}  \\ hence \:  {x}^{2}  =  \frac{1}{2}  \\ x =  \sqrt{ \frac{1}{2} }  \\

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6x – 7y = 16 2x + 7y = 24 (2, 1) (2, 0) (5, 2) (4, –5)
White raven [17]
<span>6x – 7y = 16
2x + 7y = 24

This system is easily solvable by the elimination method as the y-terms are opposites of each other. You may add the two equations together and they will cancel out.

</span>    6x – 7y = 16 
    2x + 7y = 24
+___________
    8x –  0 = 40
           8x = 40
             x = 5

Substitute 5 for x into either of the above equation and solve algebraically for y.

       2x + 7y = 24
    2(5) + 7y = 24
      10 + 7y = 24
              7y = 14
                y = 2

Check work by plugging both x- and y-values into each original equation.

    6x – 7y = 16  =>  6(5) – 7(2) = 16  =>  30 – 14 = 16
    2x + 7y = 24  =>  2(5) + 7(2) = 24  =>  10 + 14 = 24

Answer:
x = 5; y = 2

(5, 2)
3 0
3 years ago
What Is 2x squared minus 3x
Alex_Xolod [135]

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You already owed your friend $5. This morning, you borrowed $4 more, and this afternoon you paid back $3. How much money do you
prisoha [69]
$6 ? 5+4 =9
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I don't know if this is correct but this is how I would do it
6 0
3 years ago
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Which do you prefer: leaving √5 in radical form, or converting it to a decimal? Why? When would it be useful to use each?
Goshia [24]

Answer:

Leaving as a radical form

Why?

Because that's the whole value if you convert it to a decimal you cannot write all the numbers, and in the radical form it has all the numbers

It would be useful when we are working with equations for example the quadratic equation, if you get that x=√5, you would want the exact value. And there are more useful

7 0
3 years ago
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Solve for x. Express the answer in simplest form. 2 over 1 = 8x - 2 over 9
Mkey [24]
2/1 = (8x-2)/9
2=(8x-2)/9
18=8x-2
20=8x
x=8/20
x=2/5
8 0
4 years ago
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