BoyBrenden
BoyBrenden BoyBrenden
  • 31-05-2017
  • Mathematics
contestada

Evaluate x² - 7xy for x = 7 and y = 3.

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Zane18
Zane18 Zane18
  • 31-05-2017
7^2 = 7x • 3
49 - 21x
-21x + 49
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