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-8 + 4a - 2b - 6 =0
4a - 2b =14
3^3 + a*3^2 + b*3 - 6 = 0
27 +9a +3b - 6 = 0
9a + 3b = -21
4a - 2b = 14 \*9
9a + 3b = -21 \*(-4)
36a - 18b = 126
36a - 12b = 84
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-30b = 210 \\ (-30)
b = -7
4a - 2b = 14
4a - 2*(-7) = 14
4a +14 = 14
4a = 0
a=0
ODPOWIEDŹ : a=0 , b=-7