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Popular >

x^2+x-90=0

Solution

x^{2} + x - 90 = 0

Solution

x = 9, x = - 10

Solution steps

x^{2} + x - 90 = 0

Solve with the quadratic formula

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

1^{2} - 4 \cdot 1 \cdot (- 90) = 19

x_{1, 2} = \frac{- 1 \pm 19}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- 1 + 19}{2 \cdot 1}, x_{2} = \frac{- 1 - 19}{2 \cdot 1}

x = \frac{- 1 + 19}{2 \cdot 1} : 9

x = \frac{- 1 - 19}{2 \cdot 1} : - 10

The solutions to the quadratic equation are:

x = 9, x = - 10

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Frequently Asked Questions (FAQ)

What are the solutions to the equation x^2+x-90=0 ?
The solutions to the equation x^2+x-90=0 are x=9,x=-10
Find the zeros of x^2+x-90=0
The zeros of x^2+x-90=0 are x=9,x=-10