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3 years ago

Simplify (x-5)(x^2-2x-6)

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

8 0

Answer:

x^3 - 7x^2 + 4x +30

Step-by-step explanation:

x times x^2= x^3 -5 times x^2 = -5x^2

x times -2x= -2x^2 -5 times -2x = 10x

x times -6 = -6x -5 times -6 = 30

Combine like terms

(-5x^2 and -2x^2) = -7x^2

(10x - 6x) = 4x

Carry down the remaining (x^3 and 30)

x^3 - 7x^2 + 4x + 30

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3 years ago

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3 years ago

Each cube in this rectangular prism is 1 cm3.What is the volume of the rectangular prism?

Lelechka [254]

Answer:

Volume of rectangular prism = $20\ cm^3$

Step-by-step explanation:

Given rectangular prism is made up of small cubes of volume 1 cubic centimeter.

To find volume of rectangular prism.

Solution:

Volume of rectangular prism is = $length\times width \times height$

We know that all sides of a cube are equal in measure.

So, we will count the number of cubes on each side to get the exact measure.

Length side = 4 cubes = 5 cm

Width side = 2 cubes = 2 cm

Height side = 2 cubes = 2 cm

Thus volume of rectangular prism = $5\ cm\times 2\ cm \times 2\ cm$

Volume of rectangular prism = $20\ cm^3$

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3 years ago

The value of the 7 in 507,264 is 10 times the value of the 7 in which number?

monitta

The value of seven is in the thousands place and is 10 time the number seven if it were at the hundreds place, which is where 2 is.

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4 years ago

Read 2 more answers

What is the vertex of the function f(x) = 12 + 3x + ?

goldfiish [28.3K]

Answer:

(2,1)

Explanation: f(x)=3x^(2)-12x+13

a=3

h=2

k=1

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3 years ago