selhakim45 selhakim45
  • 15-03-2015
  • Mathematics
Answered

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?



Answer :

konrad509
konrad509 konrad509
  • 15-03-2015
[tex]3\cdot3^2-2\cdot5=27-10=17\\ 2\cdot3^2-3\cdot5=18-15=3\\\\ 17-3=14[/tex]

By 14.
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beastmathboy beastmathboy
  • 15-03-2015
the answer goes up by 14 because the first problem equals 8 and the second problem equals --3 therefor the difference is 14
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