What are the solutions to the equation completesquare x^2-2x-9=0 ?

The solutions to the equation completesquare x^2-2x-9=0 are x=sqrt(10)+1,x=-sqrt(10)+1

Find the zeros of completesquare x^2-2x-9=0

The zeros of completesquare x^2-2x-9=0 are x=sqrt(10)+1,x=-sqrt(10)+1

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x^{2} - 2 x - 9 = 0

x = 10 + 1, x = - 10 + 1

Decimal Notation

x = 4.16227 \dots, x = - 2.16227 \dots

Solution steps

x^{2} - 2 x - 9 = 0

Move

9

to the right side

x^{2} - 2 x = 9

Rewrite in the form

(x + a)^{2} = b

(x - 1)^{2} = 10

For

the solutions are

f (x) = a, - a

Solve

x - 1 = 10 : x = 10 + 1

Solve

x - 1 = - 10 : x = - 10 + 1

The solutions to the quadratic equation are:

x = 10 + 1, x = - 10 + 1

x, x^{2} - 64 = 0

x^{2} + 2 x - 0 = 0

x^{2} + 10 x + 25 = x + 7

2 a^{2} = - 6 + 8 a

x^{2} + 3 x + \frac{5}{2} = 0

What are the solutions to the equation completesquare x^2-2x-9=0 ?
The solutions to the equation completesquare x^2-2x-9=0 are x=sqrt(10)+1,x=-sqrt(10)+1
Find the zeros of completesquare x^2-2x-9=0
The zeros of completesquare x^2-2x-9=0 are x=sqrt(10)+1,x=-sqrt(10)+1