因式分解x^4-10x^3+25X^2-36

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因式分解x^4-10x^3+25X^2-36
因式分解x^4-10x^3+25X^2-36

因式分解x^4-10x^3+25X^2-36
原式=x^2(x^2-10x+25)-36
=x^2(x-5)^2-36
=(x^2-5x-6)(x^2-5x+6)
=(x-6)(x+1)(x-2)(x-3)

x^4-10x^3+25X^2-36
=(x-1)(x^3-9x^2+36x)
=x(x-1)(x^2-9x+36)

x^4-10x^3+25X^2-36
=(x^4+x^3)-(11x^3+11x^2)+(36x^2-36)
=(x^3-11x^2+36x-36)(x+1)
=(x^3-2x^2-9x^2+18x+18x-36)(x+1)
=(x^2-9x+18)(x-2)(x+1)
=(x-6)(x-3)(x-2)(x+1)

syms x
>> factor(x^4-10*x^3+25*x^2-36)

ans =

(x-6)*(x-2)*(x-3)*(x+1)
MATLAB 编程所得:结果准确无误!