What are the solutions to the equation x^2-(8*x)=9 ?

The solutions to the equation x^2-(8*x)=9 are x=9,x=-1

Find the zeros of x^2-(8*x)=9

The zeros of x^2-(8*x)=9 are x=9,x=-1

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x^{2} - (8 \cdot x) = 9

x = 9, x = - 1

Solution steps

x^{2} - (8 x) = 9

Refine

x^{2} - 8 x = 9

Move

9

to the left side

x^{2} - 8 x - 9 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 \cdot 1 \cdot ( - 9 )}{2 \cdot 1}

(- 8)^{2} - 4 \cdot 1 \cdot (- 9) = 10

x_{1, 2} = \frac{- ( - 8 ) \pm 10}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 8 ) + 10}{2 \cdot 1}, x_{2} = \frac{- ( - 8 ) - 10}{2 \cdot 1}

x = \frac{- ( - 8 ) + 10}{2 \cdot 1} : 9

x = \frac{- ( - 8 ) - 10}{2 \cdot 1} : - 1

The solutions to the quadratic equation are:

x = 9, x = - 1

x^{2} - 16 = 0

\frac{x}{2} = x^{2} - \frac{3}{2}

(x - 8)^{2} = 98

(x - 8)^{2} = 24

- 2 y^{2} - 14 y + 5 = 0

What are the solutions to the equation x^2-(8*x)=9 ?
The solutions to the equation x^2-(8*x)=9 are x=9,x=-1
Find the zeros of x^2-(8*x)=9
The zeros of x^2-(8*x)=9 are x=9,x=-1