anonymous
  • anonymous
please help? Solve the following word problem by using an equation and factoring. The sum of a positive number and its square is 20. What is the number? A. 1 B. 2 C. 3 D. 4 E. 5
Mathematics
katieb
  • katieb
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Mertsj
  • Mertsj
Let x be the number x^2 is its square x+x^2=20 x^2+x-20=0 Can you factor that?
anonymous
  • anonymous
yes
Mertsj
  • Mertsj
Tell me what you get.

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anonymous
  • anonymous
-5,4
Mertsj
  • Mertsj
Which one of those is the positive one? That will be your answer because the problem asks for a positive number.
anonymous
  • anonymous
4
Mertsj
  • Mertsj
Good job!!
anonymous
  • anonymous
thanks good job to you to0!

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