4 3 2 2*x - 7*x + 7*x - 8*x
2*x^4 - 7*x^3 + 7*x^2 - 8*x при x = -2
2*x^4 - 7*x^3 + 7*x^2 - 8*x
2*(-2)^4 - 7*(-2)^3 + 7*(-2)^2 - 8*(-2)
132
3 4 2 -8*x - 7*x + 2*x + 7*x
2.0*x^4 + 7.0*x^2 - 8.0*x - 7.0*x^3
x*(-8 + x*(7 + x*(-7 + 2*x)))
/ 2 3 \ x*\-8 - 7*x + 2*x + 7*x/
4 2 3 2*x + 7*x - 7*x - 8*x