Korzystamy ze wzoru skróconego mnożenia:
(a+b)²=a²+2ab+b²
i
(a-b)²=a²-2ab+b²
(π³+x)²+(x-2π³)²=
=(π³)²+2*π³*x+x²+x²-2*x*2π³+(2π³)²=
=π⁶+2π³x+2x²-4π³x+4π⁶=
=5π⁶-2π³x+2x²
3
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Korzystamy ze wzoru skróconego mnożenia:
(a+b)²=a²+2ab+b²
i
(a-b)²=a²-2ab+b²
(π³+x)²+(x-2π³)²=
=(π³)²+2*π³*x+x²+x²-2*x*2π³+(2π³)²=
=π⁶+2π³x+2x²-4π³x+4π⁶=
=5π⁶-2π³x+2x²
3