Oblicz wartości liczbowe podanych sum algebraicznych dla x = -1 i y = 0,1:
3y(3y - 2x) - (3 - x)(x + 3) - (x - 3y)² =
3y(3y - 2x) - (3 - x)(x + 3) - (x - 3y)² = 9y2-6xy-(9-x2)-(x2-2*x*3y+3y2)=9y2-6xy-9+x2-x2+6xy-3y2=6y2-9=6*(0,1)²-9=6*0,01-9=0,06-9=-8,94.
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3y(3y - 2x) - (3 - x)(x + 3) - (x - 3y)² = 9y2-6xy-(9-x2)-(x2-2*x*3y+3y2)=9y2-6xy-9+x2-x2+6xy-3y2=6y2-9=6*(0,1)²-9=6*0,01-9=0,06-9=-8,94.