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Kay [80]
2 years ago
6

How do you factor x³-9?

Mathematics
2 answers:
bixtya [17]2 years ago
8 0

Answer:

(x² + 3)(x-3)

Step-by-step explanation:

Since the exponent is uneven you can take 2 and 1 and add them to the x's multiply to get 3 and since 9 is a perfect square you can square root it and get 3 which you put on both sides. Since the 9 is negative one of the symbols have to be negative, usually put in the second parenthesis.

Hope this helps!

muminat2 years ago
5 0
Remember SOAP. Same, opposite, always positive.
(X-3)(x^2+3x+9)
The formula is (a+b)(a^2+ab+b^2) but the pluses and minuses follow SOAP
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2.) Find the zeros of the quadratic function y = x2 – 3x + 2 by factoring method. ​
storchak [24]
<h2><u>Problem</u>:-</h2>

2.) Find the zeros of the quadratic function y = x2 – 3x + 2 by factoring method.

<h2><u>Solution</u>:-</h2>

\sf{Set\:y = 0. Thus, }

\sf\rightarrow{0 = x2 – 3x + 2}

\sf\rightarrow{0 = ( x – 2) ( x – 1)}

\sf\rightarrow{x – 2 = 0     or     x – 1 = 0}

\sf{Then\:x = 2\:and\:x = 1}

<h2><u>Answer</u>:-</h2>
  • The zeros of y = x² – 3x + 2 are 2 and 1.
<h2>=====================</h2>

#CarryOnLearning

(ノ^_^)ノ

3 0
3 years ago
Find an equation for the line below.
emmasim [6.3K]

Answer:

  y = -4/5x - 0.8

Step-by-step explanation:

A(-6, 4)

B(4, -4)

Find slope using the two points above:

m = (y₂ - y₁) / (x₂ - x₁)

   = (-4 - 4) / (4 - (-6))

   = -8 / 10

m = -4/5

Find y-intercept using m from above and anyone point, let's use (-6, 4):

y = mx + b

4 = -4/5(-6) + b

4 = 24/5 + b

b = -0.8

Use m and b from above to form equation of line:

y = mx + b

y = -4/5x - 0.8

7 0
3 years ago
What is the prime factorization 56
Rainbow [258]

56=7×8=2³×7

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3 0
3 years ago
Read 2 more answers
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morpeh [17]

Answer:

If you have an extremely big number, you can use powers and exponents to turn them into scientific notation.

Step-by-step explanation:

I hope this is what you are looking for!

7 0
3 years ago
What is the length of arc S shown below?
chubhunter [2.5K]

Answer: pi/2

Step-by-step explanation:

6 0
3 years ago
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