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galben [10]
3 years ago
12

Please Help!!!

Mathematics
1 answer:
Hoochie [10]3 years ago
5 0
By synthetic division,

-5  |  1    -6    -42    79
.    |        -5     55   -65
- - - - - - - - - - - - - - - - - 
.    |  1   -11    13    14

\implies\dfrac{x^3-6x^2-42x+79}{x+5}=x^2-11x+13+\dfrac{14}{x+5}
\implies x^3-6x^2-42x+79=(x^2-11x+13)(x+5)+14

When x=-5, you're left with a remainder of 14.
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What does x equal in 28 = -2-5x
s2008m [1.1K]
X = 6

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28 + 2 = 5x
30 = 5x
30/5 = 5x/5 (we divide by five on both side because we want x to be by itself)
6 = x

:)
8 0
3 years ago
Please HELP me!! Will choose brainliest (:
Rzqust [24]

Answer:

  yes

Step-by-step explanation:

There are several ways to go at this.

My first choice is to use a graphing calculator. It shows the function has a zero at x=5, so x-5 is a factor.

Another good choice is to use synthetic division (2nd attachment). If the remainder is zero, then x-5 is a factor. It is and it is.

__

You can also evaluate the function at x=5. The remainder theorem tells you that if the value is zero, then x-5 is a factor. Evaluating the polynomial written in Horner form is a lot like synthetic division.

  (((x -4)x -15)x +58)x -40 for x=5 is ... (-10·5 +58)5 -40 = 40-40 = 0

The value of h(5) is zero, so x-5 is a factor of h(x).

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2 years ago
How much will each person drink
Klio2033 [76]
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6 0
3 years ago
after a picnic 5/12 of the cornbread is leftover. val eats 4/5 of the leftover cornbread what fraction of the cornbread does val
REY [17]

5/12 - 4/5 = -23/60. You can't simplify -23/60. Hope this is right

8 0
3 years ago
The tape diagram below represents 100\%100%100, percent.
elena-s [515]

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Step-by-step explanation:

100/4=25

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