Question

x²-3x+4
4x² - 2x + 7
-X² + 5x-2​

Answer 1

Answer:

1.(3+root(5)i)/2,

(3-root(5)i)/2

Step-by-step explanation:

i explain only first question other do same

$a {x}^{2} + bx + c = 0$

in question no 1

a=1

b=-3

c=4

$d = {b }^{2} - 4ac$

solution

$x1 = (- b + \sqrt{d} ) \div 2a \\ x2 = ( - b - \sqrt{d} ) \div 2a$

in all question change value of a,b,c

and

$\sqrt{ - 1} = i$

i =iota

Answer 2

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