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stellarik [79]
2 years ago
15

Find the factors of x3−7x−6

Mathematics
2 answers:
Misha Larkins [42]2 years ago
5 0

Step-by-step explanation:

Factor {x}^{3}-7x-6x3−7x−6 using Polynomial Division.

({x}^{2}-x-6)(x+1)(x2−x−6)(x+1)

2

 



Factor {x}^{2}-x-6x2−x−6.

(x-3)(x+2)(x+1)(x−3)(x+2)(x+1)

Lyrx [107]2 years ago
4 0

Answer:

  • B. (x−3)(x+2)(x+1)

Step-by-step explanation:

Possible options are 1 or 2 as each has odd number of negative coefficients.

<u>Open parenthesis and verify:</u>

  • (x+3)(x+2)(x−1) = ³ + 4x² + x - 6, false
  • (x−3)(x+2)(x+1) = x³ - 7x - 6, true

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Soloha48 [4]

Answer:

See explanation

Step-by-step explanation:

<u><em>1st photo:</em></u>

x = \sqrt{15}

\frac{x}{5} = \frac{3}{x}

x^{2} = 15

x = \sqrt{15}

<u><em>2nd photo:</em></u>

(a) GEH ~ FGH ~ FEG

<em>similar triangles, use similar corners in the right order</em>

(b) \frac{FE}{GE} = \frac{GE}{EH}   AND    \frac{FH}{GH} = \frac{GH}{HE}

<em>similar triangles, use similar sides in proportion</em>

<em />

<u><em>3rd photo:</em></u>

x = 4.5 or 4 1/2

\frac{x}{3} = \frac{3}{2}

<em>2x = 9</em>

<em>x = 4.5 or 4 1/2</em>

<em />

<u><em>4th photo:</em></u>

Length of string = 118.2 ft

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7 0
3 years ago
The store,s rectangular floor is 42 meters long and 39 meters wide. How many square meters of flooring do they need? Use estimat
Helga [31]
We have to find the area of the floor in order to know how many square meters of flooring they need.

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They need 1,638 m^(2) of flooring.

Hope this helps~
8 0
3 years ago
Read 2 more answers
You drive 4 miles from your house to your friend's house. Your house is at an elevation of 622 feet. Your friend's house is at a
ANEK [815]
Just subtract 622 feet from 486 feet to get the change in elevation.  The result will be negative because your friend's house is at a lower elevation than yours.

Now find the mean change in elevation per mile by dividing (486 ft - 622 ft) by 4 miles:
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8 0
3 years ago
Need the missing length
Gala2k [10]

Answer:

10

Step-by-step explanation:

The side to the right is 15. The side to the left is 5. You can subtract these two to find the length.

3 0
3 years ago
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Pranav ate pizza for dinner on Monday night and had 2/3 of the pizza left over. On Tuesday night, he ate 1/2 of what was left. H
ale4655 [162]

Answer: 1/3

Step-by-step explanation:

From the question, we are informed that Pranav ate pizza for dinner on Monday night and had 2/3 of the pizza left over. We are further told that on Tuesday night, he ate 1/2 of what was left.

The amount of pizza that Pranav ate on Tuesday will be:

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She ate 1/3 on Tuesday

6 0
3 years ago
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