Question

the common root of the equation x2-5x+6=0 or x2-6x+8=0

a) x+3
b) x - 2
c) x+4
d) x+5
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Answer 1

Answer:

b is the correct ans ........... you want solution then like

x^2-6x+8

x^2-4x-2x +8

x(x-4) -2(x-4)

(x-2) ( x-4)

x^2-5x+6

x^2 -3x -2x +6

x(x-3) -2(x-3)

(x-2) (x-3)

here you can see x-2 is the common factor