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Strike441 [17]
3 years ago
12

Simplify. (-1/2√2)(-6√18) 18 -18 -36

Mathematics
2 answers:
olga_2 [115]3 years ago
8 0

Hey!

Your answer is solved below/above idk wherever just see in the picture.

I am Lyosha [343]3 years ago
5 0

Answer:

270

Step-by-step explanation:

(-\frac{\sqrt{2} }{2} )(-18\sqrt{2} )18 - 18 - 36

\sqrt{2} × 9\sqrt{2} × 18 - 18 - 36

2 × 9 × 18 - 18 - 36

324 - 18 - 36 = 270

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Step-by-step explanation:

We know that the standard quadratic equation is  ax^2+bx+c=0

Let's compare all the given equation to it and , find discriminant.

1. a=2, b= -7, c=-9

b^2-4ac=(-7)^2-4(2)(-9)=49+72>0

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b^2-4ac=(-4)^2-4(1)(4)=16-16=0

So it has only 1 real number solution.

3. a=4, b=-3, c=-1

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So it has 2 real number solutions.

5. a=3, b=5, c=3

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Thus it does not has real solutions.



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