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3 years ago

Given an equation x3 - 8x2 - 9x + 72 = 0, find the zeros.

Mathematics

1 answer:

sveta [45]3 years ago

7 0

Answer:

= 28/3

Step-by-step explanation:

Let's solve your equation step-by-step.

x(3)−(8)(2)−9x+72=0

Step 1: Simplify both sides of the equation.

x(3)−(8)(2)−9x+72=0

3x+−16+−9x+72=0

(3x+−9x)+(−16+72)=0(Combine Like Terms)

−6x+56=0

Step 2: Subtract 56 from both sides.

−6x+56−56=0−56

−6x=−56

Step 3: Divide both sides by -6.

−6x

−6

−56

−6

Answer:

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Nastasia [14]

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3 years ago

Simplify the following expression:<br><br> -2(3x-4)+4(x-8)

In-s [12.5K]

Answer:

-2x - 24

Step-by-step explanation:

$(-2)(3x)+(-2)(-4)+(4)(x)+(4)(-8)$
$-6x + 8 + 4x - 32$
$(-6x+4x) + (8-32)$
$-2x - 24$

Therefore, the answer is -2x - 24.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

3 0

2 years ago

Read 2 more answers

the electricity goes out in a house the temperature in the house changes by -8 F in 4 hours on average, by how many degrees is t

hodyreva [135]

It’s changing by -2° F per hour

6 0

3 years ago

What is 9 1/10 - 4 3/4

Nady [450]

Answer:

$\frac{87}{20}$

Step-by-step explanation:

First we need to change the mixed numbers into improper fractions.

9 x 10 = 90 + 1 = 91/10

4 x 4 = 16 + 3 = 19/4

Now we need to get them into simplest terms. There is a few ways to do this, but I know that 10 x 2 = 20 and 4 x 5 = 20 so I will use 20.

$\frac{91}{10} = \frac{91 x 2}{10 x 2} = \frac{182}{20}$

$\frac{19}{4} = \frac{19 x 5}{4 x 5} = \frac{95}{20}$

Now we can subtract:

$\frac{182}{20} - \frac{95}{20} = \frac{87}{20}$

And that leaves us with our answer :D

5 0

3 years ago

Can please help me with this fast

LUCKY_DIMON [66]

The correct answer is A. 17

Hope this helps

8 0

3 years ago