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yan [13]
3 years ago
6

9x = 3x - 36 solve please

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
7 0

Step-by-step explanation:

9x-3x=-36

6x=-36

x=-6

tatyana61 [14]3 years ago
5 0

Answer:

x=-6

Step-by-step explanation:

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(6x² + 36x² + 12) ÷ (x+6)
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When the solutions are going to be complex, which methods can be used to solve quadratic equations?
yKpoI14uk [10]
You could complete the square to state the vertex. 
You could use the quadratic equation to find the roots (which are complex). 

Try an example that will require both.

y = x^2 + 2x + 5

Step One
Get the graph. That's included below.

Step Two
Provide the steps for completing the square.
Note: we should get (-1,4)

y= (x^2 +2x ) + 5
y = (x^2 +2x + 1) + 5 - 1
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The vertex is at (-1,4)

Step Three
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\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a}

a = 1
b = 2
c = 5

\text{x = }\dfrac{ -2 \pm \sqrt{2^{2} - 4*1*5 } }{2}
\text{x = }\dfrac{ -2 \pm \sqrt{4 - 20 } }{2}
\text{x = }\dfrac{ -2 \pm \sqrt{-16 } }{2}
\text{x = }\dfrac{ -2 \pm 4i }{2}
x = -1 +/- 2i

x1 = -1 + 2i
x2 = -1 - 2i And we are done.


7 0
3 years ago
Plz need help on a quiz???
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The answer is letter A
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4 x U(unit price) = $43.80

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8 0
3 years ago
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