Question

how to factorise this X square-6x+8​

Answer 1

Answer:

let x²+6x+8=0

=>x²+2x+4x+8=0

=>x(x+2)+4(x+2)=0

=>(x+2) (x+4)=0

=>x+2=0,x+4=0

=>x= -2,x= -4

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Answer 2

Answer:

3 + √7 or 3 - √7

Step-by-step explanation:

compare the given equation with ax²+bx+c

here a=1,b=-6,c=8

(-b(+-)√b²-4ac)/2a........ equation 1

(6 +- √36-8)/2

(6 +- √28)/2

3 + √7 or 3 - √7