( x^4 - 4 x³ + 2 x² - 4 x + 1 ) : ( x² + 1 ) = x² - 4 x + 1
- x^4 - x²
------------------------
- 4 x³ + x² - 4 x
4 x³ + 4 x
-----------------------
x² + 1
- x² - 1
----------------
R ( x ) = 0
( x^4 - 4 x³ + 2 x² - 4 x + 1) = ( x² + 1 ) ( x² - 4 x + 1 )
CAN SOMEONE PLEASE HELP ME ANSWER THIS QUESTION
I’m pretty sure the answer is x=2
Answer:
Decrease the sample size.
Step-by-step explanation:
Margin of error is:
ME = CV × √(σ / n)
where σ is the population standard deviation, or:
ME = CV × √(p (1 − p) / n)
where p is the proportion.
In each case, the margin of error is directly proportional to the critical value, and inversely proportional to √n.
Lowering the confidence level will lower the critical value, which will decrease the margin of error. Decreasing the sample size will increase the margin of error.
<span>Expand
</span><span>5x+5=3x+12</span>
<span>Subtract 5 from both sides
</span><span>5x=3x+12−5</span>
<span>Simplify <span>3x+12−5</span> to <span>3x+7</span>
</span><span>5x=3x+7</span>
<span>Subtract <span>3x</span> from both sides
</span><span>5x−3x=7</span>
<span>Simplify <span>5x−3x</span> to <span>2x</span>
</span><span>2x=7</span>
<span>Divide both sides by 2
</span><span><span>x=<span>7/2</span></span></span>
