Question

if x=-5+2√-4,find the value of x⁴+9x³+35x²-x+4​

Answer 1

Step-by-step explanation:

$x = - 5 + 2 \sqrt{4} \\ \\ = > x = - 5 + 2(2) \\ \\ = > x = - 5 + 4 = - 1$

Therefore, x = -1

Substituting the value of x = -1 in the given equation, we get,

${( - 1)}^{4} + 9 { (- 1)}^{3} + 35 { ( - 1)}^{2} - ( - 1) + 4 \\ \\ = > 1 + ( - 9) + 35 + 1 + 4 \\ \\ = > 32$

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