anonymous
  • anonymous
Solve by factoring x^2-x-90=0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
-10 and 9
anonymous
  • anonymous
(x-10)(x+9)
anonymous
  • anonymous
set both equal to 0 and solve for x x = 10 and -9

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AccessDenied
  • AccessDenied
So, you're looking for factors of -90 that add up to -1. If the sum of two numbers is negative, then the larger one would be negative. Try listing the factors of -90 and adding them together. Then you may rewrite the equation as (x - a)(x - b) = 0 you can then do x-a = 0, x-b = 0 and solve for the x's
anonymous
  • anonymous
Does that help? Rather you should be practicing how to get to that...it gets easier

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