✨ Best Answer ✨
x^2+x=Aとおくと、
(A+1)(2A-3)=2A^2-A-3
よって、2(x^2+x)^2-(x^2+x)-3=2x^4+4x^3+x^2-x
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✨ Best Answer ✨
x^2+x=Aとおくと、
(A+1)(2A-3)=2A^2-A-3
よって、2(x^2+x)^2-(x^2+x)-3=2x^4+4x^3+x^2-x
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are also looking at these questions 😉
