What are the solutions to the equation completesquare x^2-4x=9 ?

The solutions to the equation completesquare x^2-4x=9 are x=sqrt(13)+2,x=-sqrt(13)+2

Find the zeros of completesquare x^2-4x=9

The zeros of completesquare x^2-4x=9 are x=sqrt(13)+2,x=-sqrt(13)+2

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x^{2} - 4 x = 9

x = 13 + 2, x = - 13 + 2

Decimal Notation

x = 5.60555 \dots, x = - 1.60555 \dots

Solution steps

x^{2} - 4 x = 9

Rewrite in the form

(x + a)^{2} = b

(x - 2)^{2} = 13

For

the solutions are

f (x) = a, - a

Solve

x - 2 = 13 : x = 13 + 2

Solve

x - 2 = - 13 : x = - 13 + 2

The solutions to the quadratic equation are:

x = 13 + 2, x = - 13 + 2

x^{2} - (a + b) x + a \cdot b = 0

2 x^{2} - 40 x = 0

x (x + 6) + 4 = 0

x^{2} + 16 x - 14 = 0

4 x^{2} + 9 x = - 5

What are the solutions to the equation completesquare x^2-4x=9 ?
The solutions to the equation completesquare x^2-4x=9 are x=sqrt(13)+2,x=-sqrt(13)+2
Find the zeros of completesquare x^2-4x=9
The zeros of completesquare x^2-4x=9 are x=sqrt(13)+2,x=-sqrt(13)+2