What are the solutions to the equation completesquare x^2-18x-4=0 ?

The solutions to the equation completesquare x^2-18x-4=0 are x=sqrt(85)+9,x=-sqrt(85)+9

Find the zeros of completesquare x^2-18x-4=0

The zeros of completesquare x^2-18x-4=0 are x=sqrt(85)+9,x=-sqrt(85)+9

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x^{2} - 18 x - 4 = 0

x = 85 + 9, x = - 85 + 9

Decimal Notation

x = 18.21954 \dots, x = - 0.21954 \dots

Solution steps

x^{2} - 18 x - 4 = 0

Move

4

to the right side

x^{2} - 18 x = 4

Rewrite in the form

(x + a)^{2} = b

(x - 9)^{2} = 85

For

the solutions are

f (x) = a, - a

Solve

x - 9 = 85 : x = 85 + 9

Solve

x - 9 = - 85 : x = - 85 + 9

The solutions to the quadratic equation are:

x = 85 + 9, x = - 85 + 9

4 (\frac{5 - 3 y}{2})^{2} - 3 (\frac{5 - 3 y}{2}) y + 9 y^{2} = 15

x^{2} - 4.4 x = - 3.84

z^{2} + 8 = 0

4.905 x^{2} - 12 x - 70 = 0

v, K E = \frac{1}{2} m v^{2}

What are the solutions to the equation completesquare x^2-18x-4=0 ?
The solutions to the equation completesquare x^2-18x-4=0 are x=sqrt(85)+9,x=-sqrt(85)+9
Find the zeros of completesquare x^2-18x-4=0
The zeros of completesquare x^2-18x-4=0 are x=sqrt(85)+9,x=-sqrt(85)+9