All categories

2 years ago

Factorize: x²+2+1/x²

Mathematics

1 answer:

andrew-mc [135]2 years ago

8 0

$x^{2}+\frac{1}{x^{2}}+2=\boxed{\left(x+\frac{1}{x} \right)^{2}}$

You might be interested in

18 is 60% of what number

Ksenya-84 [330]

18 is 60% of 30. I know this because 10% of 30 is 3 and 3 * 6 is 18

3 0

3 years ago

PLS HELP ME ASAP FOR 5, 6, and 7 (SHOW WORK!!) + LOTS OF POINTS!!

kobusy [5.1K]

Where the line touches the x-axis

8 0

3 years ago

Please help and explain!!!!!

FinnZ [79.3K]

Let $x$ be the amount of the 30% alloy and $y$ the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of

$x+y=100$

kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that

$0.3x+0.6y=0.54(x+y)=54$

Now,

$x+y=100\implies y=100-x$

$\implies0.3x+0.6(100-x)=54$

$\implies60-0.3x=54$

$\implies0.3x=6$

$\implies x=20$

$\implies y=100-20=80$

6 0

4 years ago

The area of a square is 144cm2.what is the measurement of each side

Dmitry [639]

The area of a square is 144 cm^2. The measurement of each side is 12 cm

<u>Solution:</u>

Given, The area of a square is 144 $cm^2$

We have to find that what is the measurement of each side.

Now, we know that, area of a square = product of side value with another side value.

Let the side value of given square be "s"

Then, <em>Area of square is given as:</em>

$\begin{array}{l}{\text {area of square}=s \times s} \\\\ {\text {Area of square}=s^{2}} \\\\ {144=s^{2}} \\\\ {s=\sqrt{144}} \\\\ {s=\sqrt{12^{2}}}\end{array}$

On cancelling square root and square on right side,we get

s = 12

Hence, the side value of the square is 12 cm.

8 0

3 years ago

Twice a number, decreased by 9 is 12

Serhud [2]

Answer:

10.5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Factorize: x²+2+1/x² ​

Factorize: x²+2+1/x²