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4 years ago

How to factor x^3 - 4x^2 - 9x + 36 by grouping

Mathematics

2 answers:

const2013 [10]4 years ago

6 0

Answer:

(x-4) (x-3) (x+3)

Step-by-step explanation:

x^3 - 4x^2 - 9x + 36

Make 2 groups

x^3 - 4x^2 - 9x + 36

We can factor out x^2 from the first group and -9 from the second group

x^2 (x-4) - 9(x-4)

Now factor out (x-4)

(x-4) (x^2 -9)

This may be an answer choice but we can still factor

(x^2 -9) is the difference of squares

(x^2-9) = (x-3) (x+3)

Replacing this

(x-4) (x-3) (x+3)

alukav5142 [94]4 years ago

4 0

Answer:

(x - 4)(x - 3)(x + 3)

Step-by-step explanation:

x³ - 4x² - 9x + 36

x²(x - 4) - 9(x - 4)

(x - 4)(x² - 9)

(x - 4)(x² - 3²)

(x - 4)(x - 3)(x + 3)

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Answer:

$16,000

Step-by-step explanation:

For easier understanding and calculation; we created a table for solving this question.

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Houston $ 8 $ 12 $ 13 850

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Still Atlanta need 350 air conditioners more, the second minimum shopping cost to Atlanta is from Houston and they have 50 air conditioners left .

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4 years ago

The figure is made up of hemisphere and a cylinder.

cluponka [151]

Answer:

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V (volume) = ?

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Data: (hemisphere volume)

V (volume) = ?

r (radius) = 5 cm

Adopting:

If: We know that the volume of a sphere is , but we have a hemisphere, so the formula will be half the volume of the hemisphere

Formula: (Volume of the hemisphere)

Solving:

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Step-by-step explanation:

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3 years ago

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Viefleur [7K]

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Step-by-step explanation:

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