Find all distinct roots real or complex of z24z8 Enter the r

Find all distinct roots (real or complex) of z2+4z+8. Enter the roots as a comma-separated list of values of the form a+bi. Use the square root symbol \'\' where needed to give an exact value for your answer.

z^2 + 4z + 8

applying quadratic formula

z = { -b + - sqrt (b^2 - 4ac ) } / 2a

a = 1 , b = 4 , c = 8

plugging the values in the formula

z = { -4 + - sqrt ( 16 - 32 ) } / 2

z = -2 + 2i

z = -2 - 2i

$Find all distinct roots (real or complex) of z2+4z+8. Enter the roots as a comma-separated list of values of the form a+bi. Use the square root symbol \'\' wher$

Find all distinct roots real or complex of z24z8 Enter the r

Solution

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