2 years ago

Divide x^4-x^3+4x+2 by x^2+3

Mathematics

1 answer:

Luden [163]2 years ago

7 0

Answer:

i tried on a calculator and it gave me 211.125

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The answer would be five

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Approximately how many times greater is 8.5×108 than 3.4×105 ? A 2.5 B 250 C 2,500 D 25,000

Vlada [557]

Solution:

we have been asked to find that , how many times one number is to the other given numbers.

To do this we will divide the larger number by the smaller number and the resulting number will be the answer of the question.

Here the larger number is $8.5\times10^8$

The smaller number is $3.4\times 10^5$

Now lets divide as follows

$\frac{8.5\times10^8}{3.4\times 10^5} =\frac{8.5}{3.4}\times 10^{8-5}\\ \\\frac{8.5\times10^8}{3.4\times 10^5} =2.5\times10^3=2500$

Hence the correct option is C.

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Solve the equation by completing the square 5x(x+6)=-50

motikmotik

First lets distribute the 5x
5x^2 + 30x = -50

Lets divide every term by 5
x^2 + 6x = -10

To complete the square we have to half the b value, which in this case is 6. Then square it.
Half of 6 is 3, 3 squared is 9

Add that to both sides of the equation
x^2 + 6x + 9 = -1

Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment)

(x+3)^2 = -1

Take the square root of the equation of both sides
(x+3) = +/- i
x = -3 +/- i
x = -3 - i
and
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Answer: x > 6

The graph would be an empty circle on 6 going higher infinitely.

Step-by-step explanation:

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