x^6 - 7x^3 - 8 = 0 rozwiąż równanie
x⁶-7x³-8=0
x⁶+x³-8x³-8=0
x³(x³+1)-8(x³+1)=0
(x³-8)(x³+1)=0
x³-8=0 lub x³+1=0
x³=8 lub x³=-1
x=2 lub x=-1
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x⁶-7x³-8=0
x⁶+x³-8x³-8=0
x³(x³+1)-8(x³+1)=0
(x³-8)(x³+1)=0
x³-8=0 lub x³+1=0
x³=8 lub x³=-1
x=2 lub x=-1