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natita [175]
3 years ago
5

Factor completely: x³ - 9x

Mathematics
2 answers:
klasskru [66]3 years ago
5 0

Answer:

x(x + 3)(x - 3)

Step-by-step explanation:

What we're given is a difference of squares multiplied by x.  If we start by factoring x out, we can simply expand the binomial:

x³ - 9x

= x(x² - 9)

= x(x + 3)(x - 3)

Any time you see an expression in the format a² - b², that is called a difference of squares, and can always be expanded out to (a + b)(a - b).  In this case, a is x, and b is 3.

scoray [572]3 years ago
3 0

Answer:

x(x+3)(x-3)

Step-by-step explanation:

Factor out common term x

=x(x^2-9)

Factor x^2-9;

(x+3)(x-3)

=x(x+3)(x-3)

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Natalka [10]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
What is 875x132 written out in long multiplication
lukranit [14]
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7 0
3 years ago
I got zero, but that’s wrong.
meriva

Answer:

Expected value is 4,000

Step-by-step explanation:

To find expected value ⇒ multiply the value by it's probability

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Breaking means neither add nor subtract a given amount

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∴ Expected value = -10,000 + 14,000 = 4,000

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BREAK EVEN:       0

WIN:                       14,000

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<em>hope this helps....</em>

3 0
3 years ago
Question 2
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wanna help, but please specify what the (2) means.

our take a picture of the problem and makes me post.

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