Jawabanmu

Jawaban paling cerdas!
2014-08-14T19:05:08+07:00
Karena diketahui x=1, y= 2, 2=-3 
a. x + 2y = 1 + (-3)(2) = 1-6= -5
b.x^2 + y^2 = 1 + 4 = 5
c. -x^2 +2y - 2^2 = -1 + 4 - 9 = -4

Semoga dapat membantu :)
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