If x-5-2 -4- then the value of the expression x4-9 x3-35 x2-x-4 isA- -60B- 160C- -160D- 60

X+5=4i ⇒ x^2+10x+25= 16 Now, x^4+9x^3+35x^2 x+4 =(x^2+10x+41)(x^2 x+4) 160= 160 ...

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Algebra of Complex Numbers

If x=-5+2 √-4...

Question

If $x = - 5 + 2 \sqrt{- 4}$ , then the value of the expression $x^{4} + 9 x^{3} + 35 x^{2} - x + 4$ is

160

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-160

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-60

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x = - 5 + 2 \sqrt{- 4}

x^{4} + 9 x^{3} + 35 x^{2} - x + 4

If x=-5+ $\sqrt{- 4}$ , then the value of the expression $x^{4}$ +9 $x^{3}$ +35 $x^{2}$ -x+4 is

x = - 5 + 2 \sqrt{- 4}

x^{4} + 9 x^{3} + 35 x^{2} - x + 4

x = - 5 + \sqrt{- 4}

x^{4} + 9 x^{3} + 35 x^{2} - x + 4.

x^{4} + 9 x^{3} + 35 x^{2} - x + 4

x = - 5 + \sqrt{- 4}

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