Question

1.x² – 3x + 4
4x² – 2x + 7
-x² + 5x – 2
(ii) x3 + 6x2
5x² + 3x
5x - 7

Answer 1

Answer:

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

(3-root(5)i)/2

2. 5x - 7 = 5x -7

Step-by-step explanation:

i explain only first question other do same

ax² + bx + c = 0

in question no 1

a=1

b=-3

c=4

d=b²-4ac

solution

x1=(-b+√d)÷ 2a

x2=(-b+√d)÷ 2a

in all question change value of a,b,c

and

√-1 = i

i =iota

2. x3 + 6x2 = 6x5

5x^2 + 3x = 8x^2  

5x - 7 = 5x -7

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