Find the value of `x^4+9x^3+35 x^2-x+4`for `x=-5+2sqrt(-4).`

1.	Find the value of `x^4+9x^3+35 x^2-x+4`for `x=-5+2sqrt(-4).`
Answer» Correct Answer - `-160` we have, `x = -5 + 4i` `or (x+5)^(2) =- 16` `or x^(2) + 10 x + 41 = 0` Now, `x^(4) + 9x^(3) +35x^(2) - x +4` `= x^(2)(x^(2)+10x+41)-x(x^(2)+10x + 41) + 4(x^(2) + 10 + 41) - 160` `=0x^(2) = 0x + 4 xx 0 - 160=-160" "["Using(1)"]`

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Find the value of `x^4+9x^3+35 x^2-x+4`for `x=-5+2sqrt(-4).`

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