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MArishka [77]
4 years ago
8

Factor x^3+x^2+x+1 by grouping. what is the resulting expression​

Mathematics
2 answers:
polet [3.4K]4 years ago
7 0

Answer: \\  {x}^{3}  +  {x}^{2}  + x + 1 \\  =  {x}^{2} (x + 1) + x + 1  \\  = ( {x}^{2}  + 1)(x + 1)

kondor19780726 [428]4 years ago
7 0

The answer is C on edge2020

(x^2+1)(x+1)

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What times itself equals 32 (sorry i suck at maths)
julia-pushkina [17]
You're asking for the square root of 32. you can actually do this on a calculator really easily. just type in the number (in this case, 32) and press the square root symbol (looks like a calculator). the square root of 32 is a long string of decimals,  but it's approximately 5.7 :) good luck
7 0
3 years ago
Solve the following system of equations for all three variables.
xz_007 [3.2K]

Answer:

Step-by-step explanation:

-2x + 3y – 4z = 8    ----------------(I)

5x – 3y + 5z = -8    -----------------(II)

7x – 3y + 3z = 8 ------------------(III)

Add equation (I) & (II) and thus y will be eliminated

(I)        -2x + 3y – 4z = 8

(II)        <u>5x – 3y + 5z = -8</u>    {Add}

           3x          + z  = 0   ------------------------(A)

Multiply equation (II) by (-1) and then add with equation (III). Thus y will be eliminated.

(II) * (-1)         -5x + 3y - 5z = +8

                     <u>7x – 3y + 3z = 8</u>   {Add}

                     2x         -2z   = 16   ---------------(B)

Multiply equation (A) by 2 and then add. Thus z will be eliminated and we will get the value of x

(A) * 2          6x + 2z = 0

(B)                 <u>2x - 2z  = 16</u>   {Add}

                     8x         = 16

Divide both sides by 8

                             x = 16/8

                          x = 2

Plugin x = 2 in equation (A)

3x + z = 0

3*2 + z = 0

 6 + z = 0

       z = -6

Plug in x = 2 and z  = - 6 in equation (I)

-2x +3y - 4z = 8

-2*2 + 3y - 4*(-6) = 8

-4 + 3y + 24 = 8

     3y   + 20 = 8

               3y = 8 - 20

               3y = -12

                 y = -12/3

y = -4

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7 0
3 years ago
Read 2 more answers
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Bezzdna [24]

Answer:

The correct way to set up the slope formula for the line that passes through points (5 , 0) and (6 , -6) is  \frac{-6-0}{6-5} ⇒ C

Step-by-step explanation:

The formula of the slope of a line passes through points (x_{1},y_{1}) and (x_{2},y_{2})

is m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

∵ The line passes through points (5 , 0) and (6 , -6)

∴ x_{1} = 5 and  x_{2} = 6

∴  y_{1} = 0 and  y_{2} = -6

Substitute these values in the formula of the slope

∵ m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

∴ m=\frac{-6-0}{6-5}

Let us look to the answer and find the same formula

The answer is:

The correct way to set up the slope formula for the line that passes through points (5 , 0) and (6 , -6) is  \frac{-6-0}{6-5}

8 0
3 years ago
At the start of the experiment substance is measured to be 70°C, and by the end of the experiment its temperature is measured as
11Alexandr11 [23.1K]

9514 1404 393

Answer:

  -130 °C

Step-by-step explanation:

The change is found by subtracting the start temperature from the finish temperature. It is ....

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3 0
3 years ago
Divide 72 in a ratio of 1:3:5
likoan [24]
<span>1+3+5 = 9

72/9 = 8

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</span><span>72 in a ratio of 1:3:5 = 8:24:40</span>
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