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4 years ago

List the possible rational roots and actual rational roots for the equation x^3 - 5x^2 - 4x + 20 = 0

Mathematics

1 answer:

mixer [17]4 years ago

4 0

Answer:

The possible rational roots are

. The rational roots are

−

Step-by-step explanation:

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What is 4 - 2x = -2

vlada-n [284]

Answer:

x=3

Step-by-step explanation:

4-2x-4=-2-4

-2x=-6

\frac{-2x}{-2}=\frac{-6}{-2}

x=3

if i can get brainliest that would be great

8 0

3 years ago

The area of a rectangle is 30+12x what are 3 possibilities for the length and width of the rectangle

Stolb23 [73]

In order to find the three possibilities, you must first think of common factors between 30 and 12:

Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30

Factors of 12: 1, 2, 3, 4, 6, 12

We can find three common factors between the two numbers: 2, 3, and 6. So these are three widths that we can use. The length can be found by factoring out the numbers from 30+12x (we can't factor out x):

30+12x=2(15+6x) Width: 2 Length: 15+6x

20+12x=3(10+4x) Width: 3 Length: 10+4x

20+12x=6(5+2x) Width: 6 Length: 5+2x

4 0

3 years ago

How do u do find vertices of dilation if the factor is k =3

VladimirAG [237]

Do you have a graph or a picture? It would be easier to explain

8 0

3 years ago

Pick the correct answer :)

amm1812

= 3a^2b(cuberoot(b^2)) - 3a^2b^3(square root(3a))

answer is the first choice

4 0

4 years ago

Find the domain of ( (a+b/b) − (a/a+b))÷( (a+b/a) − (b/a+b) )

Alexandra [31]

Answer:

Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, a=-b

Step-by-step explanation:

The domain refers to values for which the expression is defined.

This implies that, the denominators are not equal to zero.

$(\frac{a + b}{b} - \frac{a}{a + b}) \div ( \frac{a + b}{a} - \frac{b}{a + b})$

$(\frac{(a + b)(a + b)-ab}{b(a + b)})\div(\frac{(a + b)(a + b)-ab}{a(a + b)})$

$\frac{(a + b)(a + b)-ab}{b(a + b)} \times\frac{a(a + b)}{(a + b)(a + b)-ab}$

$\implies \frac{a}{b}$

Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, and a=-b

7 0

3 years ago

Read 2 more answers