rozwiąz równanie 5(6x+4)- 7(4x+2) = 6 (4x+8) - 3 (2x+42)
oblicz [2 do pot. -1 + 1/2 do pot 2 - 2 do pot 3 ] * 3 do pot -1
podane wyrazenie doprowadz do najprostszej postaci 2( pier 10 - pier 15) do pot 2 -3(2pierw 15 +pierw 10 )-3 pierw 15- pier 10)(3 pierw 15 + pierw 10)
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30x+20-28x-14=24x+48-6x-126
2x+6=18x-78
-16x=-84
x=5,25
(2⁻¹+1/2²-2³)*3⁻¹=(1/2+1/4-8)*1/3=(2/4+1/4-8)*1/3=29/4*1/3=29/12