Question

find the value of x^4+9x^3+35x^2-x+4,
if x=(-5+√-4).​

Answer 1

160 is answer

Explanation:

=(-5+√-4)^4 + 9(-5+√-4)^3 + 35(-5+√-4)^2 -(-5+√-4)+4

=81 - 243 + 315 + 7

=160

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