singer1 singer1
  • 10-11-2015
  • Mathematics
contestada

Evaluate a² + ab -b² +5 when a =2 and b = 3. is the answer A. 0 B. 1 C. 6 D. 11

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bellbell252
bellbell252 bellbell252
  • 10-11-2015
(2)^2 + (2*3) - (3)^2 + 5=?

4+6-9+5=6

The answer is C. 6
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