What are the solutions to the equation x^2-13x=90 ?

The solutions to the equation x^2-13x=90 are x=18,x=-5

Find the zeros of x^2-13x=90

The zeros of x^2-13x=90 are x=18,x=-5

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x^{2} - 13 x = 90

x = 18, x = - 5

Solution steps

x^{2} - 13 x = 90

Move

90

to the left side

x^{2} - 13 x - 90 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 13 ) \pm ( - 13 ) ^{2} - 4 \cdot 1 \cdot ( - 90 )}{2 \cdot 1}

(- 13)^{2} - 4 \cdot 1 \cdot (- 90) = 23

x_{1, 2} = \frac{- ( - 13 ) \pm 23}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 13 ) + 23}{2 \cdot 1}, x_{2} = \frac{- ( - 13 ) - 23}{2 \cdot 1}

x = \frac{- ( - 13 ) + 23}{2 \cdot 1} : 18

x = \frac{- ( - 13 ) - 23}{2 \cdot 1} : - 5

The solutions to the quadratic equation are:

x = 18, x = - 5

6 x^{2} + 5 x - 10 = 0

- 11 + 6 x^{2} - 4 x^{2} = 0

- x^{2} + 6 x + 2

12 = x^{2} - x

a, p (a - 4) = (a - 4)^{2} - 5

What are the solutions to the equation x^2-13x=90 ?
The solutions to the equation x^2-13x=90 are x=18,x=-5
Find the zeros of x^2-13x=90
The zeros of x^2-13x=90 are x=18,x=-5