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lakkis [162]
3 years ago
13

Multiply and Simplify (x-4)(x^2 - 5x - 6)

Mathematics
2 answers:
creativ13 [48]3 years ago
6 0

Answer:

x^3 -9x^2 +14x +24

Step-by-step explanation:

(x-4)(x^2 - 5x - 6)

Multiply the x by everything in the second term

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

x^3 -5x^2 -6x

Multiply the -4 by everything in the second term

-4 * (x^2 - 5x - 6)

-4x^2 +20x +24

Add everything together

I like to line them up vertically

x^3 -5x^2 -6x

      -4x^2 +20x +24

-------------------------------

x^3 -9x^2 +14x +24


ipn [44]3 years ago
5 0

Answer:

x^3-9x^2-6x-4x^2+20x+24

Step-by-step explanation:

Multiply the parentheses and get:

x^3-5x^2-6x-4x^2+20x+24

Collect The Like Terms and get:

x^3-9x^2-6x+20x+24

Simplyify: x^3-9x^2-6x-4x^2+20x+24

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Answer:

= 3087 / 320

Step-by-step explanation:

8 0
3 years ago
Oranges were on sale for $0.45 per pound. Leo bought 12.6 pounds. which expression shows how to determine the total cost of oran
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7 0
4 years ago
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A rug is to fit in a room so that a border of even width is left on all four sides. if the room is 22 feetby 25 feet and the are
Damm [24]
--------------------------------------------------------
Find area of the border :
--------------------------------------------------------
Area of the room = 22 x 25 = 550 ft²
Area of the rug = 238 ft²
Area of the border = 550 - 238 = 312 ft²

--------------------------------------------------------
Define y:
--------------------------------------------------------
Let the width be y.

--------------------------------------------------------
Find area of the border in term of y :
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The area of the border =  22y x 2 + 25y x 2 - 4y² = 94y - 4y²
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--------------------------------------------------------
Solve y :
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94y - 4y² = 312
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Answer: The border can be 4 ft or 19.5 ft 
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7 0
4 years ago
A part-time house cleaner made $9258.13 last year. If he claimed himself as an exemption for $3650 and had a $5700 standard dedu
kari74 [83]

Once we sort through the tax terms, that's just

9258.13 - 3650 - 5700 = $ -91.87
A negative numbers mean the deduction and exemption sheltered all of his income, so he has $0 taxable income, choice D.


3 0
3 years ago
Read 2 more answers
F(x) = 5x - 3 for x = -7
erastovalidia [21]

Answer:

Step-by-step explanation:

f(-7) = 5(-7) - 3 = -35 - 3 = -38

6 0
4 years ago
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