sybrenavv1 sybrenavv1
  • 26-02-2018
  • Mathematics
contestada

Find the product mentally. ( r - s )^ 2
2 r^2 - rs - s^2
r^2 - 2 rs + s^2
r^2 - rs + s^2

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CometZ CometZ
  • 26-02-2018
It's the last option
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