Question

solve equation x²+6x+5=0 by using formula method​

Answer 1

Answer:

without formula:

x2+x+5x+5=0

x(x+1)+5(x+1)=0

(x+1)(x+5)=0 which gives x=-1,-5

by formula:

-6+-root(36-20)/2

=-6+-root16/2

=-6+4/2 & -6-4/2

=-2/2 & -10/2

=-1 & -5

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