Oblicz pamietajac o kolejnosci działań:
79*68+[1400-(777-687)*5]+96
2.Doprowac do najprostrzej postaci i oblicz wartosci liczbowa dla x+-1
2(1-3x)²-2(3x+1)²+(3x-2)(3x+2)-2(6x²+4)=
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1. 76x68+[14000-90x5]+96=5168+[1400-450]+96=5168+950+96=6118+96=6214
1) 5372+(1400-450)+96=6418
2) 2(1-6×+9ײ)-2(9ײ+6×+1)+(9ײ-4) -12ײ-8=2-12×+18ײ-18ײ-12×-2+9ײ-4-12ײ= -4-24×-3ײ
-4-24·(-1)-3·(-1)²= -4+24-3=17