2 years ago

Divide (x3 - 2x² + 6x - 8) by (x - 2) - How can I (x3 - 2x² + 6x - 8) by (x - 2)

Mathematics

1 answer:

Blababa [14]2 years ago

4 0

Answer:

x^2 +6 +(4/(x -2))

Step-by-step explanation:

Polynomial long division works for this. The operations are performed in much the same way as for numerical long division.

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2 years ago

Please help me I’ve asked this questions several times and I really need help with this I do not understand it at all

Ulleksa [173]

Answer:

(-5,-2)

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(-6,-1)

Step-by-step explanation:

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2 years ago

Devon made a box with length x+1, width x+3, and height x-3. What is the volume of Devon's box as a function of x?

erica [24]

Answer:

(a)

$V=x^3+x^2-9x-9$

(b)

$x=10$

(c)

$x=\frac{7}{2}$

Step-by-step explanation:

we are given

length is x+1

$L=x+1$

width is x+3

$W=x+3$

height is x-3

$H=x-3$

(a)

we can use volume formula

$V=L\times W\times H$

now, we can plug it

$V=(x+1)\times (x+3)\times (x-3)$

now, we can simplify it

$V=x^3+x^2-9x-9$

(b)

we are given volume =1001

so, we can set V=1001

and then we can solve for x

$V=x^3+x^2-9x-9=1001$

now, we can factor it

$\left(x-10\right)\left(x^2+11x+101\right)=0$

$x-10=0$

$x=10$

(b)

we are given volume

so, we can set

$V=14\frac{5}{8}=\frac{14\times 8+5}{8}$

$V=\frac{117}{8}$

and then we can solve for x

$V=x^3+x^2-9x-9=\frac{117}{8}$

now, we can factor it

$8x^3+8x^2-72x-189=0$

$\left(2x-7\right)\left(4x^2+18x+27\right)=0$

$2x-7=0$

$x=\frac{7}{2}$

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3 years ago

Please answer!<br> (1) what mistake was made?<br> (2) what suggestion could help avoid that?

AveGali [126]

Answer:

1) the signs of the numbers is not in standard form

2) always make sure that the signs of the two equations is standarised and then solve

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2 years ago

Lucy had $72 which is 9 times more than Xavier had

WINSTONCH [101]

Answer:

multiply 72 times 9

Step-by-step explanation: 648

6 0

3 years ago

Read 2 more answers