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anzhelika [568]

3 years ago

15

What is correct A, B or C

1 answer:

Whitepunk [10]3 years ago

3 0

Answer:

A is the correct solution

Step-by-step explanation:

3x³ + 4x² + 0x - 1 / x - 2

<u> 3 10 20</u>

-2 | 3 4 0 -1

- (<u>3 -6</u>)

10 0

- <u>(10 -20)</u>

20 -1

- (<u>20 -40</u>)

39

3x² + 10x + 20 + 39/(x - 2)

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For any number n>1, is |(0.8 + 0.8i)| a. Greater than 1? b. Less than 1? c. Equal to 1?

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Answer: the answers is a

Step-by-step explanation:

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4 years ago

2 less then 3 times a number is 9

Masteriza [31]

$\huge\boxed{\text{As an expression:}\ 3x-2=9}$

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Let's start with " $3$ times a number". We will use $x$ to represent the number. $3x$

" $2$ less than" is next. $-2$

Finally, "is $9$ ". $=9$

Put it all together to get an expression. $\boxed{3x-2=9}$

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3 years ago

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Charra [1.4K]

Answer:

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What is the set of all solutions to the equation \sqrt{x + 2}= {-x} x+2 =−xsquare root of, x, plus, 2, end square root, equals

NARA [144]

Answer:

$x = 2$ or $x = -1$

Step-by-step explanation:

Given

$\sqrt{x + 2}= {-x}$

Required

Find the possible values fo x

$\sqrt{x + 2}= {-x}$

Square both sides

$( \sqrt{x + 2})^2= ({-x})^2$

$x + 2 = x^2$

Equate to 0

$x^2 - x - 2 = 0$

Expand

$x^2 + x -2x - 2 = 0$

Factorize:

$x(x + 1) - 2(x + 1) = 0$

$(x -2)(x +1) = 0$

Split:

$x - 2 = 0$ or $x + 1 = 0$

$x = 2 + 0$ or $x = 0-1$

$x = 2$ or $x = -1$

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3 years ago