Question

Solve by completing square method
x2+6x+5=0

Answer 1

Helo mate here your ans

Explanation:

For a quadratic

a

x

2

+

b

x

+

c

=

0

, there are specific conditions required to be able to write it as the square of a binomial.

a

=

1

,

(

b

2

)

2

=

c

x

2

+

6

x

−

5

=

0

In this case,

a

=

1

, but

(

6

2

)

2

=

9

≠

−

5

Move

−

5

to the other side and add

9

to both sides.

x

2

+

6

x

+

9

=

5

+

9

(

x

+

3

)

2

=

14

←

find the square root of both sides.

x

+

3

=

±

√

14

x

=

+

√

14

−

3

or

x

=

−

√

14

−

3

x

=

0.742

or

x

=

−

6.742

Hope this ans help you..

Answer 2

Answer:

x2+6x=-5

x2+2*x*3=-5x

x2+2*x*3+3square=-5+3square

a2+b2+2ab apply formula

(x+3)square=-5+9

=4

x+3=√4

x+3 =2

x=2-3=-1

orx+3=-2

x=-2-3

x=-5

x=-2,-5