Respostas

2014-06-01T16:02:59-03:00
Substitua o x e o y..3.16+2.4-5=45...      9-12+150+5=152
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2014-06-01T16:15:00-03:00


3X2 +2X –Y   para X = 4 e Y = 5

3.42 + 2.4 – 5 =   

    3.16 + 8 – 5 =  

    48 + 8 – 5 =    

  = 51                                                                                                                            X2 – 4X + 6Y2 + y  para X = 3 e Y = 5

32 – 4.3 + 6.52 + 5 =

9 – 12 + 6. 25 + 5=

9 – 12  + 150 + 5 =

= 158

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