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dimulka [17.4K]
3 years ago
5

How do I solve this equation and check all the solutions?

Mathematics
2 answers:
mash [69]3 years ago
6 0

Answer:

10

Step-by-step explanation:

x-√2x-5=5

-√2x-5=5-x

√2x-5=-5+x

2x-5=x²-10x+25

2x-5-x²+10x-25=0

12x-20-x²=0

-x²+12x-20=0

x²-12x+20=0

x=10

Note: there is a another answer x=2 but the equality will be false if x=2 so the answer is 10

Eddi Din [679]3 years ago
5 0
The answer I got was: x = 0,2

Hope this helps! ;)
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Find the derivative F(x)=(5x+3)(2x^2+1)
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Answer:

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Step-by-step explanation:

F(x)=(5x+3)(2x^2+1)

= 5x*2x^2 + 5x*1 + 3*2x^2 + 3*1

= 10x^3 + 5x + 6x^2 + 3

= 10x^3 + 6x^2 + 5x + 3

3 0
3 years ago
Please help me with this answer!! I am really stuck...No nonsense answers please.
wariber [46]

Answer:

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Step-by-step explanation:

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< DBG = 1/2 ( DG)

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3 years ago
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vesna_86 [32]

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Step-by-step explanation:

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8 0
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Read 2 more answers
Write the following number as ratios of integers
s2008m [1.1K]

Our goal here is to somehow "surgically remove" the repeating part of the number, so let's start by putting the original value in a variable and messing around with it a bit.

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The operation was a success! We can now simply divide either side by 9 to find x = 69/9, which, when reduced by dividing the numerator and denominator by 3, gives us x=23/3

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It is 2 :)
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Where A is equal to the amplitude.

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2 years ago
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