Question

x^2+7x=9

hope you Solve this question​

Answer 1

Answer:

Explanation:Use the quadratic formula to find the solutions.

−

b±√ b2− 4 ( ac ) 2 a Substitute the valuea = Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values  

a

=

1

,  

b

=

7

, and  

c

=

−

9

into the quadratic formula and solve for  

x

.

−

7

±

√

7

2

−

4

⋅

(

1

⋅

−

9

)

2

⋅

1

Simplify.

Tap for more steps...

x

=

−

7

±

√

85

2

The result can be shown in multiple forms.

Exact Form:

x

=

−

7

±

√

85

2

Decimal Form:

x

=

1.10977222

…

,

−

8.10977222

…