anonymous
  • anonymous
is x^2 = 100 x={-10,10} or {10}
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
first one
anonymous
  • anonymous
well (-10)^2 = 100 also, so both.
saifoo.khan
  • saifoo.khan
A.

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anonymous
  • anonymous
so how do you know if there are parentheses around the -10
anonymous
  • anonymous
um...for just x^2 = 100. you assume both. the difference is are you squaring -10 or are you doing something like 0 - 10^2
anonymous
  • anonymous
umm k
slaaibak
  • slaaibak
you know there's brackets, because x^2 = x * x Therefore -10 * -10 = (-10)^2
anonymous
  • anonymous
"A negative times a negative equals a positive" 10 x 10 equals 100, and -10 x -10 also equals 100.
slaaibak
  • slaaibak
^\[A^2\]

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