I want check my answer ()()()

  • Thread starter r-soy
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  • #1
159
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I want check my answer ()()()
 

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  • #2
HallsofIvy
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For 59 you have "- x3" when you should be subtracting the square.

For 60 you have "[itex]\sqrt{x}+ \sqrt{x}+ \sqrt{x}[/itex]" for "add three times the square root". That will work but should be written more simply as "[itex]3\sqrt{x}[/itex]".

The others are correct.
 
  • #3
159
1
my dear

#59 what is wrong ?

# 60
F(x) = -8xccube + 3square root of 3

now is ok?
 
  • #4
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#59 what is wrong ?

# 60
F(x) = -8xccube + 3square root of 3

now is ok?
#59 "subtracts the square of the domain element", not the cube of it, as you have.
#60 Correct. F(x) = -8x3 + 3[itex]\sqrt{3}[/itex]
 
  • #5
Mentallic
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In #59 the question says "...then subtract the square of the domain element..." (maybe the underline is the key here :wink:)
But you have subtracted the cube.
the square ---> x2
the cube ----> x3

See the dilemma?

For #60 yes that is ok now.
 
  • #6
159
1
thanks very much for helping me
 

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