f(x) = x^4 + x^3 - 3x^2 - 7x - 4
Find this root and then use the calculator to determine any other irrational roots (rounded to 3 decimals). Enter answers from smallest to largest.
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Apply remainder theorem to factorize f(x).
f(-1)=0 this implies x+1 is factor of f(x)
we can solve
we will get
Thus zeros of f(x) are
two zeros are real and two are complex conjugate.
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